release: v1.1.0 — S3 multi-backend storage and admin UI

Add PasswordInput with show/hide toggle, align legacy setup/register
routing, merge duplicate i18n keys, and remove unused jose dependency.

.github/workflows/docker-publish.yml

@@ -2,22 +2,30 @@ name: Publish Docker image
 
 on:
   push:
-    branches: [main]
     tags:
       - 'v*'
   workflow_dispatch:
 
 permissions:
   contents: read
-  packages: write
 
 env:
   IMAGE_NAME: pichost
 
 jobs:
-  build-and-push:
+  build:
     if: ${{ !contains(github.event.head_commit.message, '[skip docker]') }}
-    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - platform: linux/amd64
+            runner: ubuntu-latest
+            suffix: amd64
+          - platform: linux/arm64
+            runner: ubuntu-24.04-arm
+            suffix: arm64
+    runs-on: ${{ matrix.runner }}
     env:
       DOCKERHUB_USERNAME: ${{ secrets.DOCKERHUB_USERNAME }}
       DOCKERHUB_TOKEN: ${{ secrets.DOCKERHUB_TOKEN }}
@@ -25,59 +33,67 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v7
 
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
-
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
-      - name: Log in to GitHub Container Registry
-        uses: docker/login-action@v3
-        with:
-          registry: ghcr.io
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
       - name: Log in to Docker Hub
-        if: env.DOCKERHUB_USERNAME != '' && env.DOCKERHUB_TOKEN != ''
         uses: docker/login-action@v3
         with:
           username: ${{ env.DOCKERHUB_USERNAME }}
           password: ${{ env.DOCKERHUB_TOKEN }}
 
-      - name: Resolve image names
+      - name: Resolve version
-        id: images
+        id: version
         run: |
-          names="ghcr.io/${OWNER}/${IMAGE_NAME}"
+          if [ "${{ github.ref_type }}" = "tag" ]; then
-          if [ -n "${DOCKERHUB_USERNAME}" ]; then
+            echo "value=${GITHUB_REF#refs/tags/v}" >> "$GITHUB_OUTPUT"
-            names="${names}
+          else
-          ${DOCKERHUB_USERNAME}/${IMAGE_NAME}"
+            echo "value=dev" >> "$GITHUB_OUTPUT"
           fi
-          {
-            echo "list<<EOF"
-            echo "${names}"
-            echo "EOF"
-          } >> "$GITHUB_OUTPUT"
-        env:
-          OWNER: ${{ github.repository_owner }}
 
-      - name: Extract metadata
+      - name: Build and push platform image
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: ${{ steps.images.outputs.list }}
-          tags: |
-            type=raw,value=latest,enable={{is_default_branch}}
-            type=semver,pattern={{version}}
-            type=semver,pattern=v{{version}}
-
-      - name: Build and push
         uses: docker/build-push-action@v6
         with:
           context: .
           push: true
-          platforms: linux/amd64,linux/arm64
+          platforms: ${{ matrix.platform }}
-          tags: ${{ steps.meta.outputs.tags }}
+          tags: |
-          labels: ${{ steps.meta.outputs.labels }}
+            ${{ env.DOCKERHUB_USERNAME }}/${{ env.IMAGE_NAME }}:${{ steps.version.outputs.value }}-${{ matrix.suffix }}
-          cache-from: type=gha
+          cache-from: type=gha,scope=${{ matrix.suffix }}
-          cache-to: type=gha,mode=max
+          cache-to: type=gha,mode=max,scope=${{ matrix.suffix }}
+
+  merge:
+    if: ${{ !contains(github.event.head_commit.message, '[skip docker]') }}
+    needs: build
+    runs-on: ubuntu-latest
+    env:
+      DOCKERHUB_USERNAME: ${{ secrets.DOCKERHUB_USERNAME }}
+      DOCKERHUB_TOKEN: ${{ secrets.DOCKERHUB_TOKEN }}
+    steps:
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ env.DOCKERHUB_USERNAME }}
+          password: ${{ env.DOCKERHUB_TOKEN }}
+
+      - name: Resolve version
+        id: version
+        run: |
+          if [ "${{ github.ref_type }}" = "tag" ]; then
+            echo "value=${GITHUB_REF#refs/tags/v}" >> "$GITHUB_OUTPUT"
+          else
+            echo "value=dev" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Create multi-arch manifest
+        run: |
+          IMAGE="${DOCKERHUB_USERNAME}/${IMAGE_NAME}"
+          VERSION="${{ steps.version.outputs.value }}"
+          docker buildx imagetools create \
+            -t "${IMAGE}:${VERSION}" \
+            -t "${IMAGE}:latest" \
+            "${IMAGE}:${VERSION}-amd64" \
+            "${IMAGE}:${VERSION}-arm64"

.github/workflows/release.yml

@@ -0,0 +1,71 @@
+name: GitHub Release
+
+on:
+  push:
+    tags:
+      - 'v*'
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: '要发布 Release 的标签（如 v1.0.1）'
+        required: true
+        type: string
+
+permissions:
+  contents: write
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v7
+        with:
+          ref: ${{ github.event_name == 'workflow_dispatch' && inputs.tag || github.ref }}
+
+      - name: Setup Node
+        uses: actions/setup-node@v6
+        with:
+          node-version: 22
+          cache: npm
+
+      - name: Install npm 11
+        run: npm install -g npm@11.12.1
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Extract release notes from CHANGELOG
+        id: notes
+        run: |
+          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
+            TAG="${{ inputs.tag }}"
+          else
+            TAG="${GITHUB_REF#refs/tags/}"
+          fi
+          VERSION="${TAG#v}"
+          BODY_FILE="${RUNNER_TEMP}/release-notes.md"
+          awk -v ver="$VERSION" '
+            /^## \[/ {
+              if (found) exit
+              if ($0 ~ "\\[" ver "\\]") found = 1
+              next
+            }
+            found { print }
+          ' CHANGELOG.md > "$BODY_FILE"
+          if [ ! -s "$BODY_FILE" ]; then
+            echo "未在 CHANGELOG.md 找到版本 ${VERSION}，使用自动生成说明。" >&2
+            echo "## PicHost ${TAG}" > "$BODY_FILE"
+          fi
+          echo "tag=${TAG}" >> "$GITHUB_OUTPUT"
+          echo "body_path=${BODY_FILE}" >> "$GITHUB_OUTPUT"
+
+      - name: Create GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          tag_name: ${{ steps.notes.outputs.tag }}
+          name: PicHost ${{ steps.notes.outputs.tag }}
+          body_path: ${{ steps.notes.outputs.body_path }}
+          draft: false
+          prerelease: false
+          make_latest: true

.gitignore

@@ -36,3 +36,7 @@ data
 
 # 本地 Git hooks 模板（仅安装在 .git/hooks/，不进仓库）
 git-hooks/
+
+# 飞牛 fpk 工程与产物（仅本地维护，不进仓库）
+scripts/fpk/
+dist-fpk/

CHANGELOG.md

@@ -2,6 +2,65 @@
 
 本仓库自 **v1.0.0** 起作为正式版维护；此前历史提交已归档重置。
 
+## [1.1.0] - 2026-08-26
+
+### 新增
+
+- S3 兼容对象存储后端（R2 / AWS S3 / 腾讯云 COS / 阿里云 OSS）
+- `storage_backends` + `images` 索引表，列表/搜索/统计改查 SQLite
+- 混合直链：`proxy`（默认，PicHost 代理）与 `public`（302 到 CDN）
+- 管理员 `/storage` 存储管理页：多后端卡片、用量条、添加/编辑/删除云存储实例
+- 可选环境变量覆盖存储配置（`STORAGE_BACKEND`、`S3_*`）
+
+### 改进
+
+- 启动时自动将本地磁盘图片扫描迁入 `images` 索引（幂等）
+- 上传/删除/直链/auto-delete 按 `backend_id` 路由到对应后端
+
+## [1.0.4] - 2026-08-25
+
+### 新增
+
+- 密码输入框支持显示/隐藏切换（`PasswordInput` 组件，含无障碍文案）
+
+### 改进
+
+- 遗留 `ADMIN_SECRET` 部署：`/setup`、`/register` 路由与 `needsMigration` 检测对齐
+- 合并重复的密码不一致 i18n 文案；移除未使用的 `jose` 依赖
+
+### 修复
+
+- 修复 `PasswordInput` 导致 CI typecheck 失败
+
+## [1.0.3] - 2026-08-23
+
+### 修复
+
+- 修复 CI typecheck 失败（移动端菜单、i18n、统计页图库刷新）
+- Docker 构建：arm64 改用原生 ARM Runner，避免 QEMU 下 `npm ci` 极慢
+- Docker 构建：启用 npm 缓存挂载，加快依赖安装
+
+## [1.0.2] - 2026-08-23
+
+### 新增
+
+- 中英文界面（`@nuxtjs/i18n`），语言切换与主题切换独立菜单
+- 移动端导航：汉堡菜单 + 分组用户菜单（语言 / 外观 / 账户）
+- Docker 忘记密码：`docker exec pichost reset-password`（随机密码，见 `server/cli/`）
+
+### 改进
+
+- 统计页工具栏与图库布局（桌面单行、移动端适配）
+- 上传卡片视觉优化（背景图、插图、悬停边框动效）
+- Logo 与上传区图片压缩，减小体积
+
+## [1.0.1] - 2026-08-22
+
+### 修复
+
+- 系统设置页底部显示当前应用版本号
+- 修复移动端上传偏好面板内容被裁剪、无法完整展示的问题
+
 ## [1.0.0] - 2026-08-22
 
 ### 新增
@@ -24,6 +83,11 @@
 
 ### 路线图
 
-- **v1.1.0**（计划中）：S3、Cloudflare R2 及更多对象存储后端
+- **v1.1.0**（当前 `main`）：S3、Cloudflare R2 等多后端对象存储
 
+[1.1.0]: https://github.com/O96u/PicHost/releases/tag/v1.1.0
+[1.0.4]: https://github.com/O96u/PicHost/releases/tag/v1.0.4
+[1.0.3]: https://github.com/O96u/PicHost/releases/tag/v1.0.3
+[1.0.2]: https://github.com/O96u/PicHost/releases/tag/v1.0.2
+[1.0.1]: https://github.com/O96u/PicHost/releases/tag/v1.0.1
 [1.0.0]: https://github.com/O96u/PicHost/releases/tag/v1.0.0

Dockerfile

@@ -1,3 +1,5 @@
+# syntax=docker/dockerfile:1
+
 FROM node:22-alpine AS build
 
 WORKDIR /app
@@ -6,7 +8,8 @@ WORKDIR /app
 RUN npm install -g npm@11.12.1
 
 COPY package.json package-lock.json ./
-RUN npm ci
+RUN --mount=type=cache,target=/root/.npm \
+    npm ci
 
 COPY . .
 RUN npm run build
@@ -20,8 +23,11 @@ ENV NODE_ENV=production \
     DATA_DIR=/data
 
 COPY --from=build /app/.output ./.output
+COPY server/cli/reset-password.mjs ./server/cli/reset-password.mjs
+COPY docker-entrypoint.sh /docker-entrypoint.sh
+RUN chmod +x /docker-entrypoint.sh
 
 EXPOSE 6892
 VOLUME /data
 
-CMD ["node", ".output/server/index.mjs"]
+ENTRYPOINT ["/docker-entrypoint.sh"]

README.en.md

@@ -6,7 +6,7 @@
 
 <p align="center"><strong>Lightweight personal image hosting</strong> · Simple uploads, clean management</p>
 
-<p align="center">Self-hosted / Multi-user / Docker / API / Twikoo · Zero-config setup</p>
+<p align="center">Self-hosted / Multi-user / Docker / API / Twikoo · Local disk or object storage</p>
 
 <p align="center">
   <a href="https://github.com/O96u/PicHost/blob/main/package.json"><img src="https://img.shields.io/github/package-json/v/O96u/PicHost?style=flat-square&color=22c55e" alt="version" /></a>
@@ -17,6 +17,7 @@
 </p>
 
 <p align="center">
+  <a href="#branches">Branches</a> ·
   <a href="#quick-start">Quick Start</a> ·
   <a href="#screenshots">Screenshots</a> ·
   <a href="#features">Features</a> ·
@@ -27,26 +28,43 @@
 
 ---
 
+## Branches
+
+| Branch | Notes |
+| ------ | ----- |
+| [**main**](https://github.com/O96u/PicHost/tree/main) (default) | **v1.1.0** — local disk + multi-backend object storage (R2 / COS / OSS / AWS), [`/storage`](docs/README.md) UI, hybrid URLs |
+| [**cloudflare**](https://github.com/O96u/PicHost/tree/cloudflare) | **Cloudflare R2–only line** — streamlined for deployments that use R2 exclusively |
+
+Use **main** for the full product and multiple cloud backends.
+
+If you **only use Cloudflare R2**, check out the dedicated branch:
+
+```bash
+git clone https://github.com/O96u/PicHost.git
+cd PicHost
+git checkout cloudflare
+```
+
+---
+
 ## Screenshots
 
-| Login | Upload |
+|                 Upload                 |              Storage               |
-|:---:|:---:|
+| :------------------------------------: | :--------------------------------: |
-| ![Login](docs/screenshots/login.png) | ![Upload](docs/screenshots/upload.png) |
+| ![Upload](docs/screenshots/upload.png) | ![Storage](docs/screenshots/storage.png) |
 
-| Upload preferences | Stats & gallery |
+|           Stats & gallery            |              Settings              |
-|:---:|:---:|
+| :----------------------------------: | :--------------------------------: |
-| ![Preferences](docs/screenshots/preferences.png) | ![Stats](docs/screenshots/stats.png) |
+| ![Stats](docs/screenshots/stats.png) | ![Settings](docs/screenshots/settings.png) |
-
-| Settings | |
-|:---:|:---:|
-| ![Settings](docs/screenshots/settings.png) | |
 
 ## Features
 
 - **Drag, click, or Ctrl+V paste** to upload; admins can use custom `folder` paths
 - **Server-side WebP** (sharp), Referer hotlink protection, configurable public base URL
 - **Multi-user** — username/password login; optional registration; users see only their images
-- **Upload preferences** (card flip UI): client-side compression, auto-copy links, per-user auto-delete
+- **Upload preferences** (home card flip): client-side compression, auto-copy links, per-user auto-delete
+- **Multi-backend storage**: local disk + S3-compatible (Cloudflare R2 / Tencent COS / Alibaba OSS / AWS S3); admins manage backends at **Storage** (`/storage`)
+- **Hybrid URLs**: `proxy` (same-origin via PicHost) or `public` (302 to CDN / bucket URL)
 - **Gallery** — browse, search, batch delete; admin sees uploader badges
 - **Stats** — upload/delete metrics, folder breakdown; admin sees registered user count
 - **API** — global token (admin) + per-user tokens; in-app cURL snippets
@@ -58,12 +76,26 @@
 ### Docker (recommended)
 
 ```bash
-git clone https://github.com/O96u/PicHost.git
+docker run -d \
-cd PicHost
+  --name pichost \
-docker compose up -d
+  -p 6892:6892 \
+  -v ./data:/data \
+  --restart unless-stopped \
+  muxui/pichost:latest
 ```
 
-Default port: **6892**. Complete the setup wizard in the browser. Image: `muxui/pichost:latest` (fallback: `ghcr.io/o96u/pichost:latest`).
+Default port: **6892**. Open `http://<host>:6892` in your browser and complete the setup wizard.
+
+**Forgot password** (requires `docker exec` / server access):
+
+```bash
+docker exec pichost reset-password              # admin only, when there is exactly one
+docker exec pichost reset-password <username>   # admin or regular user
+```
+
+A random password is printed. Fails if the user does not exist.
+
+If you cloned the repo, you can also use `docker compose up -d` (see `docker-compose.yml`).
 
 ### Local development
 
@@ -75,41 +107,22 @@ npm run dev
 
 Open `http://localhost:3000/setup` to create the admin account. Data defaults to `./data`.
 
-### Legacy migration
-
-If you only had `ADMIN_SECRET` and no user table, log in with the secret once and follow the migration wizard.
-
 ## Tech Stack
 
 | Layer    | Technology                                          |
-|-------|------------|
+| -------- | --------------------------------------------------- |
 | Frontend | Nuxt 4, Vue 3, Nuxt UI 4, Tailwind CSS 4            |
 | Backend  | Nitro (Node.js), SQLite                             |
 | Images   | sharp (WebP transcoding & compression)              |
 | Auth     | Session cookie, scrypt password hashing, API tokens |
-| Storage | Local disk (`DATA_DIR`) |
+| Storage  | Local disk + S3-compatible backends (R2 / COS / OSS / AWS); `images` index in SQLite |
 | Deploy   | Docker (amd64 / arm64), docker compose              |
 | Tests    | Vitest                                              |
 
-## Environment variables
-
-| Variable | Description |
-|----------|-------------|
-| `API_UPLOAD_TOKEN` | Global upload token (`Auth-Token` header); can be generated in the API page |
-| `ALLOWED_REFERER_HOSTS` | Hotlink allowlist (comma-separated hostnames) |
-| `IMAGE_BASE_URL` | Public base URL for image links |
-| `WEBP_QUALITY` | Server WebP quality 1–100, default 80 |
-| `AUTO_DELETE_DAYS` | Global auto-delete days (0 = off); admin + orphan images only |
-| `DATA_DIR` | Data directory, default `/data` (container) or `./data` (local) |
-| `ADMIN_SECRET` | Legacy v1.0 migration only |
-| `DEV_BYPASS_ACCESS` | Dev only — bypass auth (never in production) |
-
-Environment variables override database settings. See [`.env.example`](.env.example).
-
 ## Users & permissions
 
 | Scenario                       | Auth                 | Ownership / visibility      |
-|----------|------|------------------------|
+| ------------------------------ | -------------------- | --------------------------- |
 | Web upload                     | Session              | Current user                |
 | API upload + **user token**    | `Auth-Token`         | Token owner                 |
 | API upload + **global token**  | `Auth-Token`         | Admin (`userId` null)       |
@@ -123,18 +136,18 @@ Regular users are limited to the `images/` folder; custom `folder` requires admi
 
 ```
 /data
-├── pichost.db          # SQLite: users, sessions, settings, logs
+├── pichost.db          # SQLite: users, sessions, settings, storage_backends, images index
-├── images/             # Default upload folder
+├── images/             # Default upload folder (when using local backend)
 ├── blog/               # Example custom folder
 └── twikoo/             # Twikoo comment images
 ```
 
-Pattern: `folder/YYYY/MM/randomId.webp` + `.meta.json`. Back up the entire `/data` directory.
+Pattern: `folder/YYYY/MM/randomId.webp` + `.meta.json`. With cloud backends, blobs live in the bucket; SQLite `images` tracks `backend_id` and `key`. Back up all of `/data` plus bucket data.
 
 ## API overview
 
 | Method | Path                 | Description            |
-|--------|------|-------------|
+| ------ | -------------------- | ---------------------- |
 | POST   | `/api/images/upload` | Upload image           |
 | GET    | `/api/images`        | Paginated list         |
 | DELETE | `/api/images`        | Delete one (`key`)     |
@@ -154,7 +167,7 @@ Full docs and copyable cURL snippets are on the **API** page after deployment.
 ## Twikoo
 
 | Setting           | Value                               |
-|---------|-------|
+| ----------------- | ----------------------------------- |
 | `IMAGE_CDN`       | `easyimage`                         |
 | `IMAGE_CDN_URL`   | `https://your-domain/api/index.php` |
 | `IMAGE_CDN_TOKEN` | Same as `API_UPLOAD_TOKEN`          |
@@ -179,10 +192,18 @@ npm test             # Unit tests
 ## Roadmap
 
 | Version    | Plan                                                           |
-|---------|------|
+| ---------- | -------------------------------------------------------------- |
-| **v1.0.0** | Local storage, multi-user, API, Twikoo (current) |
+| **v1.1.0** | Multi-backend object storage, hybrid URLs, storage UI (current `main`) |
-| **v1.1.0** | S3, Cloudflare R2, and more object storage backends |
+| **v1.0.4** | Password visibility toggle, legacy ADMIN_SECRET migration      |
+| **v1.0.3** | CI and Docker multi-arch build fixes                           |
+| **v1.0.2** | i18n, mobile menus, stats/upload UI, Docker password reset     |
+| **v1.0.1** | Settings version display, mobile upload preferences layout fix |
+| **v1.0.0** | Local storage, multi-user, API, Twikoo                         |
 
 ## License
 
 [MIT](LICENSE)
+
+## Friend links
+
+[LINUX DO](https://linux.do/)

README.md

@@ -6,7 +6,7 @@
 
 <p align="center"><strong>个人轻量图床</strong> · 图片放好，管理也要顺手</p>
 
-<p align="center">自托管图床 / 多用户 / Docker / API / Twikoo · 零配置引导</p>
+<p align="center">自托管图床 / 多用户 / Docker / API / Twikoo · 本地磁盘或对象存储</p>
 
 <p align="center">
   <a href="https://github.com/O96u/PicHost/blob/main/package.json"><img src="https://img.shields.io/github/package-json/v/O96u/PicHost?style=flat-square&color=22c55e" alt="version" /></a>
@@ -17,6 +17,7 @@
 </p>
 
 <p align="center">
+  <a href="#分支">分支</a> ·
   <a href="#快速开始">快速开始</a> ·
   <a href="#界面预览">预览</a> ·
   <a href="#特性">特性</a> ·
@@ -27,26 +28,43 @@
 
 ---
 
+## 分支
+
+| 分支 | 说明 |
+| ---- | ---- |
+| [**main**](https://github.com/O96u/PicHost/tree/main)（默认） | **v1.1.0** 主线：本地磁盘 + 多对象存储后端（R2 / COS / OSS / AWS）、[`/storage`](docs/README.md) 存储管理、混合直链 |
+| [**cloudflare**](https://github.com/O96u/PicHost/tree/cloudflare) | **Cloudflare R2 专用线**：面向「只用 R2」的部署，预设与配置更聚焦 R2 |
+
+日常使用、需要管理多种存储后端，请直接用 **main**。
+
+若图床**只接 Cloudflare R2**、希望更简化的 R2 专用版本，可切换分支：
+
+```bash
+git clone https://github.com/O96u/PicHost.git
+cd PicHost
+git checkout cloudflare
+```
+
+---
+
 ## 界面预览
 
-| 登录 | 上传 |
+|                 上传                  |                存储管理                 |
-|:---:|:---:|
+| :-----------------------------------: | :-------------------------------------: |
-| ![登录](docs/screenshots/login.png) | ![上传](docs/screenshots/upload.png) |
+| ![上传](docs/screenshots/upload.png) | ![存储](docs/screenshots/storage.png) |
 
-| 上传偏好 | 统计与图库 |
+|             统计与图库              |                系统设置                 |
-|:---:|:---:|
+| :---------------------------------: | :-------------------------------------: |
-| ![上传偏好](docs/screenshots/preferences.png) | ![统计](docs/screenshots/stats.png) |
+| ![统计](docs/screenshots/stats.png) | ![设置](docs/screenshots/settings.png) |
-
-| 系统设置 | |
-|:---:|:---:|
-| ![设置](docs/screenshots/settings.png) | |
 
 ## 特性
 
 - **拖拽 / 点击 / Ctrl+V 粘贴**上传；管理员可自定义 `folder` 目录
 - **服务端 WebP 压缩**（sharp）、Referer 防盗链、可配置访问域名
 - **多用户**：账号密码登录；管理员可开放注册；普通用户仅见自己的图片
-- **上传偏好**（卡片翻转设置）：客户端预压缩、自动复制链接、按用户自动删除
+- **上传偏好**（首页卡片翻转）：客户端预压缩、自动复制链接、按用户自动删除
+- **多后端存储**：本地磁盘 + S3 兼容（Cloudflare R2 / 腾讯云 COS / 阿里云 OSS / AWS S3）；管理员在 **存储**（`/storage`）页管理，新上传写入默认后端
+- **混合直链**：`proxy`（PicHost 同源代理）或 `public`（302 到 CDN / 桶公网地址）
 - **图库**：浏览、搜索、批量删除；管理员可查看上传者标签
 - **统计**：上传/删除趋势、目录分布；管理员额外显示注册用户数量
 - **API**：全局 Token（管理员）+ 每用户个人 Token；后台可复制 cURL
@@ -58,12 +76,31 @@
 ### Docker（推荐）
 
 ```bash
-git clone https://github.com/O96u/PicHost.git
+docker run -d \
-cd PicHost
+  --name pichost \
-docker compose up -d
+  -p 6892:6892 \
+  -v ./data:/data \
+  --restart unless-stopped \
+  muxui/pichost:latest
 ```
 
-默认端口 **6892**。浏览器打开后按引导创建管理员即可。镜像：`muxui/pichost:latest`（备用 `ghcr.io/o96u/pichost:latest`）。
+默认端口 **6892**。浏览器打开 `http://<主机IP>:6892`，按引导创建管理员即可。
+
+**忘记密码**（需能执行 `docker exec`，相当于服务器权限）：
+
+```bash
+# 无参数：重置管理员（仅当系统中只有一个管理员时）
+docker exec pichost reset-password
+
+# 指定用户名：可重置管理员或普通用户
+docker exec pichost reset-password 用户名
+```
+
+终端会打印随机新密码；用户不存在时会报错。登录后请到「修改密码」更换。
+
+本地：`npm run reset-password` 或 `npm run reset-password -- 用户名`
+
+已克隆仓库时也可用 `docker compose up -d`（见仓库内 `docker-compose.yml`）。
 
 ### 本地开发
 
@@ -75,41 +112,22 @@ npm run dev
 
 访问 `http://localhost:3000/setup` 创建管理员；数据目录默认 `./data`。
 
-### 遗留部署迁移
-
-若旧版仅配置了 `ADMIN_SECRET`、尚无用户表，可用密钥登录一次，Web 引导迁移为账号密码。
-
 ## 技术栈
 
 | 层级     | 技术                                       |
-|------|------|
+| -------- | ------------------------------------------ |
 | 前端     | Nuxt 4、Vue 3、Nuxt UI 4、Tailwind CSS 4   |
 | 后端     | Nitro（Node.js）、SQLite                   |
 | 图片处理 | sharp（WebP 转码与压缩）                   |
 | 鉴权     | Session Cookie、scrypt 密码哈希、API Token |
-| 存储 | 本地磁盘（`DATA_DIR`） |
+| 存储     | 本地磁盘 + S3 兼容后端（R2 / COS / OSS / AWS）；`images` 索引在 SQLite |
 | 部署     | Docker（amd64 / arm64）、docker compose    |
 | 测试     | Vitest                                     |
 
-## 环境变量
-
-| 变量 | 说明 |
-|------|------|
-| `API_UPLOAD_TOKEN` | 全局上传 Token（`Auth-Token` 头）；未配置可在后台 API 页生成 |
-| `ALLOWED_REFERER_HOSTS` | 防盗链白名单（逗号分隔 hostname） |
-| `IMAGE_BASE_URL` | 图片直链公网域名（反代时建议填写） |
-| `WEBP_QUALITY` | 服务端 WebP 质量 1–100，默认 80 |
-| `AUTO_DELETE_DAYS` | 全局自动删除天数（0 关闭）；仅影响管理员及无归属历史图 |
-| `DATA_DIR` | 数据目录，默认 `/data`（容器）或 `./data`（本地） |
-| `ADMIN_SECRET` | 仅遗留 v1.0 迁移，新安装不需要 |
-| `DEV_BYPASS_ACCESS` | 开发用，跳过登录（生产勿开） |
-
-环境变量优先级高于后台设置。详见 [`.env.example`](.env.example)。
-
 ## 用户与权限
 
 | 场景                       | 鉴权                 | 图片归属 / 可见范围        |
-|------|------|---------------------|
+| -------------------------- | -------------------- | -------------------------- |
 | 网页上传                   | Session              | 当前登录用户               |
 | API 上传 + **个人 Token**  | `Auth-Token`         | 该 Token 所属用户          |
 | API 上传 + **全局 Token**  | `Auth-Token`         | 管理员（`userId` 为空）    |
@@ -123,18 +141,18 @@ npm run dev
 
 ```
 /data
-├── pichost.db          # SQLite：用户、会话、设置、操作日志
+├── pichost.db          # SQLite：用户、会话、设置、storage_backends、images 索引
-├── images/             # 默认上传目录
+├── images/             # 默认上传目录（本地后端时）
 ├── blog/               # 管理员自定义 folder 示例
 └── twikoo/             # Twikoo 评论图片
 ```
 
-路径规则：`目录/年/月/随机ID.webp` + 同名 `.meta.json`。备份整个 `/data` 即可。
+路径规则：`目录/年/月/随机ID.webp` + 同名 `.meta.json`。云存储时文件在对应桶内，SQLite `images` 表记录 `backend_id` 与 `key`。备份请包含整个 `/data` 与云桶数据。
 
 ## API 概览
 
 | 方法   | 路径                 | 说明                   |
-|------|------|------|
+| ------ | -------------------- | ---------------------- |
 | POST   | `/api/images/upload` | 上传图片               |
 | GET    | `/api/images`        | 分页列表               |
 | DELETE | `/api/images`        | 删除单张（`key`）      |
@@ -154,7 +172,7 @@ curl -X POST "https://pic.example.com/api/images/upload" \
 ## Twikoo
 
 | 配置项            | 值                               |
-|--------|-----|
+| ----------------- | -------------------------------- |
 | `IMAGE_CDN`       | `easyimage`                      |
 | `IMAGE_CDN_URL`   | `https://你的域名/api/index.php` |
 | `IMAGE_CDN_TOKEN` | 与 `API_UPLOAD_TOKEN` 相同       |
@@ -178,11 +196,19 @@ npm test             # 单元测试
 
 ## 路线图
 
-| 版本 | 计划 |
+| 版本       | 说明                                              |
-|------|------|
+| ---------- | ------------------------------------------------- |
-| **v1.0.0** | 本地存储、多用户、API、Twikoo（当前） |
+| **v1.1.0** | S3 / R2 多后端对象存储、混合直链、存储管理页（当前 main） |
-| **v1.1.0** | S3、Cloudflare R2 等对象存储后端 |
+| **v1.0.4** | 密码显示切换、遗留 ADMIN_SECRET 迁移对齐          |
+| **v1.0.3** | CI 与 Docker 多架构构建修复                       |
+| **v1.0.2** | 中英文、移动端菜单、统计/上传 UI、Docker 重置密码 |
+| **v1.0.1** | 设置页版本展示、移动端上传偏好布局修复            |
+| **v1.0.0** | 本地存储、多用户、API、Twikoo                     |
 
 ## License
 
 [MIT](LICENSE)
+
+## 友链
+
+[LINUX DO](https://linux.do/)

app/app.vue

@@ -1,8 +1,10 @@
 <script setup lang="ts">
+const { t } = useI18n()
+
 useHead({
-  title: 'PicHost - 个人图床',
+  title: () => t('app.title'),
   meta: [
-    { name: 'description', content: '个人自用的轻量图床系统' }
+    { name: 'description', content: () => t('app.description') }
   ]
 })
 </script>

app/assets/css/main.css

@@ -26,19 +26,64 @@
   transform: rotateY(180deg);
 }
 
+@media (max-width: 639px) {
+  .upload-card-flip.is-flipped {
+    perspective: none;
+  }
+
+  .upload-card-flip.is-flipped .upload-card-flip-inner {
+    transform: none;
+  }
+
+  .upload-card-flip .upload-card-face--back {
+    display: none;
+  }
+
+  .upload-card-flip.is-flipped .upload-card-face--front {
+    display: none;
+  }
+
+  .upload-card-flip.is-flipped .upload-card-face--back {
+    display: block;
+    position: static;
+    transform: none;
+  }
+
+  .upload-card-flip.is-flipped .upload-card-surface {
+    min-height: 0;
+  }
+}
+
 .upload-card-surface {
   min-height: 20.5rem;
   border-radius: 1rem;
   border-width: 2px;
   border-style: dashed;
-  border-color: var(--ui-border);
+  background-color: color-mix(in oklab, var(--ui-bg-elevated) 72%, transparent);
-  background-color: color-mix(in oklab, var(--ui-bg-elevated) 50%, transparent);
   padding: 2.5rem;
+  transition:
+    border-color 0.2s cubic-bezier(0.4, 0, 0.2, 1),
+    background-color 0.2s cubic-bezier(0.4, 0, 0.2, 1),
+    box-shadow 0.2s cubic-bezier(0.4, 0, 0.2, 1);
+}
+
+.upload-card-surface:not(.upload-card-surface--panel) {
+  border-color: var(--ui-border);
+}
+
+.upload-card-surface:not(.upload-card-surface--panel):hover,
+.upload-card-surface:not(.upload-card-surface--panel).upload-card-surface--active {
+  border-color: var(--ui-primary);
+  background-color: color-mix(in oklab, var(--ui-primary) 10%, var(--ui-bg-elevated) 72%);
+  box-shadow: 0 0 0 1px color-mix(in oklab, var(--ui-primary) 25%, transparent),
+    0 8px 24px color-mix(in oklab, var(--ui-primary) 18%, transparent);
 }
 
 .upload-card-surface--panel {
   border-style: solid;
+  border-color: var(--ui-border);
   background-color: var(--ui-bg-elevated);
+  background-image: none;
   box-shadow: var(--ui-shadow-sm);
   padding: 0;
 }

app/components/AdminLoginGate.vue

@@ -2,13 +2,10 @@
 import logoLight from '~/assets/image/logo-light.png'
 import logoDark from '~/assets/image/logo-dark.png'
 
-const emit = defineEmits<{
-  success: []
-}>()
-
 const router = useRouter()
 const { login, fetchStatus, authStatus } = useAuth()
 const toast = useToast()
+const { t } = useI18n()
 
 const username = ref('')
 const password = ref('')
@@ -46,11 +43,10 @@ async function submit() {
       username.value = ''
       password.value = ''
       secret.value = ''
-      emit('success')
+      toast.add({ title: t('auth.loginSuccess'), color: 'success' })
-      toast.add({ title: '登录成功', color: 'success' })
     } else {
       toast.add({
-        title: result.error ?? (legacyMode.value ? '登录失败，请检查密钥' : '用户名或密码错误'),
+        title: result.error ?? (legacyMode.value ? t('auth.loginFailedSecret') : t('auth.loginFailedCredentials')),
         color: 'error'
       })
     }
@@ -61,7 +57,10 @@ async function submit() {
 </script>
 
 <template>
-  <div class="flex min-h-screen items-center justify-center bg-muted/30 p-4 sm:p-6">
+  <div class="relative flex min-h-screen items-center justify-center bg-muted/30 p-4 sm:p-6">
+    <div class="absolute top-4 right-4">
+      <AuthPagePreferences />
+    </div>
     <div class="w-full max-w-sm rounded-2xl border border-default bg-elevated p-6 shadow-lg sm:p-8">
       <div class="mb-8 space-y-3 text-center">
         <div class="mx-auto inline-flex items-center justify-center">
@@ -87,7 +86,7 @@ async function submit() {
             <span class="text-highlighted">Pic</span><span class="text-primary">Host</span>
           </h1>
           <p class="text-sm text-muted">
-            个人轻量图床
+            {{ t('app.tagline') }}
           </p>
         </div>
       </div>
@@ -102,21 +101,17 @@ async function submit() {
               for="admin-secret"
               class="block text-sm font-medium text-default"
             >
-              管理密钥
+              {{ t('auth.adminSecret') }}
             </label>
-            <UInput
+            <PasswordInput
               id="admin-secret"
               v-model="secret"
-              type="password"
+              :placeholder="t('auth.adminSecretPlaceholder')"
-              placeholder="输入 ADMIN_SECRET"
               autocomplete="current-password"
-              size="lg"
-              class="w-full"
-              :ui="{ root: 'w-full' }"
               @keyup.enter="submit"
             />
             <p class="text-xs leading-relaxed text-muted">
-              遗留部署：使用密钥登录后将引导创建账号
+              {{ t('auth.legacyHint') }}
             </p>
           </div>
         </template>
@@ -127,12 +122,12 @@ async function submit() {
               for="login-username"
               class="block text-sm font-medium text-default"
             >
-              用户名
+              {{ t('auth.username') }}
             </label>
             <UInput
               id="login-username"
               v-model="username"
-              placeholder="用户名"
+              :placeholder="t('auth.username')"
               autocomplete="username"
               size="lg"
               class="w-full"
@@ -145,17 +140,13 @@ async function submit() {
               for="login-password"
               class="block text-sm font-medium text-default"
             >
-              密码
+              {{ t('auth.password') }}
             </label>
-            <UInput
+            <PasswordInput
               id="login-password"
               v-model="password"
-              type="password"
+              :placeholder="t('auth.password')"
-              placeholder="密码"
               autocomplete="current-password"
-              size="lg"
-              class="w-full"
-              :ui="{ root: 'w-full' }"
               @keyup.enter="submit"
             />
           </div>
@@ -163,7 +154,7 @@ async function submit() {
 
         <UButton
           type="submit"
-          label="登录"
+          :label="t('auth.login')"
           icon="i-lucide-log-in"
           size="lg"
           block
@@ -176,18 +167,18 @@ async function submit() {
           v-if="allowRegistration"
           class="text-center text-sm text-muted"
         >
-          没有账号？
+          {{ t('auth.noAccount') }}
           <NuxtLink
             to="/register"
             class="text-primary hover:underline"
           >
-            注册
+            {{ t('auth.register') }}
           </NuxtLink>
         </p>
       </form>
 
       <p class="mt-6 text-center text-xs leading-relaxed text-dimmed">
-        未登录时无法访问上传和管理功能
+        {{ t('auth.loginFooter') }}
       </p>
     </div>
   </div>

app/components/AppShell.vue

@@ -4,87 +4,58 @@ import logoLight from '~/assets/image/logo-light.png'
 import logoDark from '~/assets/image/logo-dark.png'
 
 const route = useRoute()
-const colorMode = useColorMode()
 const { logout, user, isAdmin } = useAuth()
+const { t } = useI18n()
+
+const mobileNavOpen = ref(false)
+const mobileUserOpen = ref(false)
 
 const navItems = computed(() => {
   const items = [
-    { label: 'API', to: '/api', icon: 'i-lucide-code-2' },
+    { label: t('nav.api'), to: '/api', icon: 'i-lucide-code-2' },
-    { label: '统计', to: '/stats', icon: 'i-lucide-chart-column' }
+    { label: t('nav.stats'), to: '/stats', icon: 'i-lucide-chart-column' }
   ]
   if (isAdmin.value) {
-    items.push({ label: '设置', to: '/settings', icon: 'i-lucide-settings' })
+    items.push({ label: t('nav.storage'), to: '/storage', icon: 'i-lucide-hard-drive' })
+    items.push({ label: t('nav.settings'), to: '/settings', icon: 'i-lucide-settings' })
   }
   return items
 })
 
-const themeIcon = computed(() => {
+const accountMenuItems = computed<DropdownMenuItem[]>(() => [
-  if (colorMode.preference === 'system') return 'i-lucide-monitor'
-  return colorMode.preference === 'dark' ? 'i-lucide-moon' : 'i-lucide-sun'
-})
-
-const themeItems = computed<DropdownMenuItem[][]>(() => [[
   {
-    label: '浅色',
+    label: t('nav.changePassword'),
-    icon: 'i-lucide-sun',
-    type: 'checkbox',
-    checked: colorMode.preference === 'light',
-    onUpdateChecked(checked: boolean) {
-      if (checked) colorMode.preference = 'light'
-    }
-  },
-  {
-    label: '深色',
-    icon: 'i-lucide-moon',
-    type: 'checkbox',
-    checked: colorMode.preference === 'dark',
-    onUpdateChecked(checked: boolean) {
-      if (checked) colorMode.preference = 'dark'
-    }
-  },
-  {
-    label: '跟随系统',
-    icon: 'i-lucide-monitor',
-    type: 'checkbox',
-    checked: colorMode.preference === 'system',
-    onUpdateChecked(checked: boolean) {
-      if (checked) colorMode.preference = 'system'
-    }
-  }
-]])
-
-const userMenuItems = computed<DropdownMenuItem[][]>(() => {
-  const items: DropdownMenuItem[] = [
-    {
-      label: '修改密码',
     icon: 'i-lucide-key-round',
     to: '/account/password'
-    }
+  },
-  ]
+  {
-
+    label: t('nav.logout'),
-  if (isAdmin.value) {
-    items.push({
-      label: '系统设置',
-      icon: 'i-lucide-settings',
-      to: '/settings'
-    })
-  }
-
-  items.push({
-    label: '退出登录',
     icon: 'i-lucide-log-out',
     onSelect() {
       void handleLogout()
     }
-  })
+  }
+])
 
-  return [items]
+const desktopUserMenuItems = computed<DropdownMenuItem[][]>(() => [
-})
+  accountMenuItems.value
+])
 
 function isNavActive(to: string) {
+  if (to === '/settings') {
+    return route.path === '/settings'
+  }
   return route.path.startsWith(to)
 }
 
+watch(mobileNavOpen, (open) => {
+  if (open) mobileUserOpen.value = false
+})
+
+watch(mobileUserOpen, (open) => {
+  if (open) mobileNavOpen.value = false
+})
+
 async function handleLogout() {
   await logout()
 }
@@ -93,23 +64,24 @@ async function handleLogout() {
 <template>
   <div class="flex min-h-screen flex-col">
     <header class="sticky top-0 z-40 border-b border-default bg-default/80 backdrop-blur">
-      <div class="mx-auto flex max-w-7xl flex-col gap-3 px-4 py-2.5 sm:flex-row sm:items-center sm:justify-between sm:px-6">
+      <div class="mx-auto max-w-7xl px-4 py-2.5 sm:px-6">
+        <div class="flex items-center justify-between gap-3">
           <NuxtLink
             to="/"
-          title="返回上传"
+            :title="t('nav.backToUpload')"
-          class="group flex shrink-0 items-center gap-2.5 transition-opacity hover:opacity-90 sm:gap-3"
+            class="group flex min-w-0 shrink items-center gap-2.5 transition-opacity hover:opacity-90 sm:gap-3"
           >
             <img
               :src="logoLight"
               alt="PicHost"
-            class="h-10 w-auto shrink-0 object-contain sm:h-11 dark:hidden"
+              class="h-9 w-auto shrink-0 object-contain sm:h-11 dark:hidden"
               decoding="async"
               draggable="false"
             >
             <img
               :src="logoDark"
               alt="PicHost"
-            class="hidden h-10 w-auto shrink-0 object-contain sm:h-11 dark:block"
+              class="hidden h-9 w-auto shrink-0 object-contain sm:h-11 dark:block"
               decoding="async"
               draggable="false"
             >
@@ -117,14 +89,15 @@ async function handleLogout() {
               <p class="text-[15px] font-bold tracking-tight sm:text-base">
                 <span class="text-highlighted">Pic</span><span class="text-primary">Host</span>
               </p>
-            <p class="mt-0.5 text-[11px] text-muted sm:text-xs">
+              <p class="mt-0.5 hidden text-[11px] text-muted min-[380px]:block sm:text-xs">
-              个人轻量图床
+                {{ t('app.tagline') }}
               </p>
             </div>
           </NuxtLink>
 
-        <div class="flex flex-wrap items-center justify-end gap-1 sm:gap-2">
+          <ClientOnly>
-          <nav class="flex flex-wrap items-center gap-1">
+            <div class="flex shrink-0 items-center gap-0.5 sm:gap-1">
+              <nav class="hidden items-center gap-1 sm:flex">
                 <UButton
                   v-for="item in navItems"
                   :key="item.to"
@@ -139,10 +112,26 @@ async function handleLogout() {
 
               <div class="mx-1 hidden h-5 w-px bg-muted sm:block" />
 
-          <ClientOnly>
+              <div class="hidden items-center gap-0.5 sm:flex">
+                <LocaleMenu />
+                <ThemeMenu />
+              </div>
+
+              <div class="flex items-center gap-0.5 sm:hidden">
+                <MobileUserMenu
+                  v-if="user"
+                  v-model:open="mobileUserOpen"
+                />
+                <MobileNavMenu
+                  v-model:open="mobileNavOpen"
+                  :items="navItems"
+                />
+              </div>
+
+              <div class="hidden sm:block">
                 <UDropdownMenu
                   v-if="user"
-              :items="userMenuItems"
+                  :items="desktopUserMenuItems"
                 >
                   <UButton
                     variant="ghost"
@@ -161,15 +150,8 @@ async function handleLogout() {
                     />
                   </UButton>
                 </UDropdownMenu>
-            <UDropdownMenu :items="themeItems">
+              </div>
-              <UButton
+            </div>
-                :icon="themeIcon"
-                variant="ghost"
-                color="neutral"
-                size="sm"
-                aria-label="切换主题"
-              />
-            </UDropdownMenu>
             <template #fallback>
               <div class="size-8" />
             </template>

app/components/AuthPagePreferences.vue

@@ -0,0 +1,6 @@
+<template>
+  <div class="flex items-center gap-1">
+    <LocaleMenu />
+    <ThemeMenu />
+  </div>
+</template>

app/components/CopyButton.vue

@@ -13,6 +13,7 @@ const emit = defineEmits<{
 }>()
 
 const toast = useToast()
+const { t } = useI18n()
 const copying = ref(false)
 
 function copyWithFallback(text: string): boolean {
@@ -40,7 +41,7 @@ function copyWithFallback(text: string): boolean {
 
 function notifySuccess() {
   toast.add({
-    title: props.successTitle ?? (props.label ? `已复制 ${props.label}` : '已复制到剪贴板'),
+    title: props.successTitle ?? (props.label ? t('copy.copiedLabel', { label: props.label }) : t('copy.copied')),
     color: 'success'
   })
   emit('copied')
@@ -64,7 +65,7 @@ async function copy() {
     if (copyWithFallback(props.value)) {
       notifySuccess()
     } else {
-      toast.add({ title: '复制失败，请手动选中链接复制', color: 'error' })
+      toast.add({ title: t('copy.failedManual'), color: 'error' })
     }
   } finally {
     copying.value = false

app/components/DeleteConfirmModal.vue

@@ -1,5 +1,5 @@
 <script setup lang="ts">
-defineProps<{
+const props = defineProps<{
   open: boolean
   count: number
   loading?: boolean
@@ -10,6 +10,10 @@ const emit = defineEmits<{
   'confirm': []
 }>()
 
+const { t } = useI18n()
+
+const description = computed(() => t('delete.confirmDesc', { count: props.count }))
+
 function close() {
   emit('update:open', false)
 }
@@ -22,20 +26,20 @@ function confirm() {
 <template>
   <UModal
     :open="open"
-    title="确认删除"
+    :title="t('delete.confirmTitle')"
-    :description="`确定要删除选中的 ${count} 张图片吗？此操作不可恢复。`"
+    :description="description"
     @update:open="emit('update:open', $event)"
   >
     <template #footer>
       <div class="flex justify-end gap-2">
         <UButton
-          label="取消"
+          :label="t('common.cancel')"
           color="neutral"
           variant="outline"
           @click="close"
         />
         <UButton
-          label="确认删除"
+          :label="t('delete.confirm')"
           color="error"
           :loading="loading"
           @click="confirm"

app/components/ImageCard.vue

@@ -9,9 +9,11 @@ const props = withDefaults(defineProps<{
   deleting?: boolean
   selectable?: boolean
   showKey?: boolean
+  compact?: boolean
 }>(), {
   selectable: true,
-  showKey: true
+  showKey: true,
+  compact: false
 })
 
 const emit = defineEmits<{
@@ -20,18 +22,19 @@ const emit = defineEmits<{
 }>()
 
 const { formatFileSize } = useFileSize()
+const { t, locale } = useI18n()
 const imageError = ref(false)
 const copyFormat = ref<CopyFormat>('url')
 
-const copyFormatItems = [
+const copyFormatItems = computed(() => [
-  { label: '直链', value: 'url' as const },
+  { label: t('copy.url'), value: 'url' as const },
-  { label: 'Markdown', value: 'markdown' as const },
+  { label: t('copy.markdown'), value: 'markdown' as const },
-  { label: 'HTML', value: 'html' as const }
+  { label: t('copy.html'), value: 'html' as const }
-]
+])
 
 const uploadedLabel = computed(() => {
   try {
-    return new Date(props.image.uploadedAt).toLocaleString('zh-CN', { hour12: false })
+    return new Date(props.image.uploadedAt).toLocaleString(locale.value, { hour12: false })
   } catch {
     return props.image.uploadedAt
   }
@@ -51,11 +54,11 @@ const previewValue = computed(() => {
 const copySuccessTitle = computed(() => {
   switch (copyFormat.value) {
     case 'markdown':
-      return '已复制 Markdown'
+      return t('copy.copiedMarkdown')
     case 'html':
-      return '已复制 HTML'
+      return t('copy.copiedHtml')
     default:
-      return '已复制直链'
+      return t('copy.copiedUrl')
   }
 })
 
@@ -79,7 +82,7 @@ function toggleSelected(value: boolean | 'indeterminate') {
         v-else
         class="flex h-full items-center justify-center text-sm text-muted"
       >
-        预览失败
+        {{ t('image.previewFailed') }}
       </div>
       <div
         v-if="selectable"
@@ -96,7 +99,7 @@ function toggleSelected(value: boolean | 'indeterminate') {
           color="error"
           variant="solid"
           icon="i-lucide-trash-2"
-          aria-label="删除"
+          :aria-label="t('common.delete')"
           :loading="deleting"
           @click="emit('delete')"
         />
@@ -107,7 +110,7 @@ function toggleSelected(value: boolean | 'indeterminate') {
       >
         <span
           class="inline-flex max-w-full items-center gap-1 rounded-md bg-black/65 px-2 py-0.5 text-xs font-medium text-white shadow-sm backdrop-blur-sm"
-          :title="`上传者：${image.owner.username}`"
+          :title="t('image.uploader', { name: image.owner.username })"
         >
           <UIcon
             name="i-lucide-user"
@@ -118,7 +121,34 @@ function toggleSelected(value: boolean | 'indeterminate') {
       </div>
     </div>
 
-    <div class="flex flex-1 flex-col gap-2 p-3">
+    <div
+      v-if="compact"
+      class="flex items-center gap-1.5 p-2 sm:hidden"
+    >
+      <div class="min-w-0 flex-1">
+        <p
+          class="truncate text-xs font-medium"
+          :title="image.originalName"
+        >
+          {{ image.originalName }}
+        </p>
+        <p class="text-[11px] text-muted">
+          {{ formatFileSize(image.size) }}
+        </p>
+      </div>
+      <CopyButton
+        icon="i-lucide-copy"
+        icon-only
+        :label="t('common.copy')"
+        :value="image.url"
+        :success-title="t('copy.copiedUrl')"
+      />
+    </div>
+
+    <div
+      class="flex flex-1 flex-col gap-2 p-3"
+      :class="{ 'hidden sm:flex': compact }"
+    >
       <p
         class="truncate text-sm font-medium"
         :title="image.originalName"
@@ -151,7 +181,7 @@ function toggleSelected(value: boolean | 'indeterminate') {
         />
         <CopyButton
           icon="i-lucide-copy"
-          label="复制"
+          :label="t('common.copy')"
           :value="previewValue"
           :success-title="copySuccessTitle"
         />

app/components/ImageGrid.vue

@@ -8,10 +8,13 @@ const props = withDefaults(defineProps<{
   selectable?: boolean
   showKey?: boolean
   emptyText?: string
+  dense?: boolean
+  compact?: boolean
 }>(), {
   selectable: true,
   showKey: true,
-  emptyText: '暂无图片'
+  dense: false,
+  compact: false
 })
 
 const emit = defineEmits<{
@@ -19,6 +22,10 @@ const emit = defineEmits<{
   'delete': [key: string]
 }>()
 
+const { t } = useI18n()
+
+const displayEmptyText = computed(() => props.emptyText ?? t('image.empty'))
+
 function updateSelection(key: string, selected: boolean) {
   const next = new Set(props.selectedKeys)
   if (selected) next.add(key)
@@ -30,7 +37,8 @@ function updateSelection(key: string, selected: boolean) {
 <template>
   <div
     v-if="items.length"
-    class="grid grid-cols-1 items-start gap-4 sm:grid-cols-2 lg:grid-cols-3 xl:grid-cols-4"
+    class="grid items-start sm:grid-cols-2 lg:grid-cols-3 xl:grid-cols-4"
+    :class="dense ? 'grid-cols-2 gap-3' : 'grid-cols-1 gap-4'"
   >
     <ImageCard
       v-for="image in items"
@@ -40,6 +48,7 @@ function updateSelection(key: string, selected: boolean) {
       :deleting="deletingKeys.has(image.key)"
       :selectable="selectable"
       :show-key="showKey"
+      :compact="compact"
       @update:selected="updateSelection(image.key, $event)"
       @delete="emit('delete', image.key)"
     />
@@ -48,6 +57,6 @@ function updateSelection(key: string, selected: boolean) {
     v-else
     class="rounded-xl border border-dashed border-default py-16 text-center text-sm text-muted"
   >
-    {{ emptyText }}
+    {{ displayEmptyText }}
   </div>
 </template>

app/components/ImageUploader.vue

@@ -1,4 +1,7 @@
 <script setup lang="ts">
+import uploadCardBg from '~/assets/image/upload-card-bg.webp'
+import uploadCardHero from '~/assets/image/upload-card-hero.webp'
+
 const props = defineProps<{
   disabled?: boolean
 }>()
@@ -10,12 +13,10 @@ const emit = defineEmits<{
 
 const fileInput = ref<HTMLInputElement | null>(null)
 const dragging = ref(false)
-const hovering = ref(false)
 
+const { t } = useI18n()
 const { bindPaste } = useClipboardImage(ref(null))
 
-const isActive = computed(() => dragging.value || hovering.value)
-
 bindPaste((files) => {
   if (!props.disabled) emit('upload', files)
 })
@@ -51,31 +52,33 @@ function onDragLeave() {
   dragging.value = false
 }
 
-function onMouseEnter() {
+function openSettings(event: Event) {
-  if (!props.disabled) hovering.value = true
+  event.stopPropagation()
-}
-
-function onMouseLeave() {
-  hovering.value = false
-}
-
-function openSettings() {
   if (props.disabled) return
   emit('open-settings')
 }
+
+function onKeydown(event: KeyboardEvent) {
+  if (props.disabled) return
+  if (event.key === 'Enter' || event.key === ' ') {
+    event.preventDefault()
+    openFilePicker()
+  }
+}
 </script>
 
 <template>
   <div
-    class="upload-card-surface group/upload relative text-center transition-all duration-300 ease-out"
+    role="button"
-    :class="isActive
+    tabindex="0"
-      ? 'scale-[1.01] border-primary bg-primary/5 shadow-md shadow-primary/10'
+    class="upload-card-surface group/upload relative cursor-pointer overflow-hidden text-center outline-none focus-visible:ring-2 focus-visible:ring-primary/40"
-      : 'hover:border-primary/50 hover:bg-primary/[0.04] hover:shadow-sm'"
+    :class="{ 'upload-card-surface--active': dragging }"
+    :aria-disabled="disabled"
+    @click="openFilePicker"
+    @keydown="onKeydown"
     @drop="onDrop"
     @dragover="onDragOver"
     @dragleave="onDragLeave"
-    @mouseenter="onMouseEnter"
-    @mouseleave="onMouseLeave"
   >
     <input
       ref="fileInput"
@@ -87,11 +90,20 @@ function openSettings() {
       @change="onFileChange"
     >
 
-    <div class="absolute top-3 right-3 z-10">
+    <img
+      :src="uploadCardBg"
+      alt=""
+      aria-hidden="true"
+      class="pointer-events-none absolute inset-0 size-full object-cover opacity-100 dark:opacity-[0.12]"
+      decoding="async"
+      draggable="false"
+    >
+
+    <div class="absolute top-3 right-3 z-20">
       <button
         type="button"
-        class="upload-settings-btn inline-flex size-8 items-center justify-center rounded-md text-muted transition-colors hover:bg-elevated hover:text-highlighted disabled:pointer-events-none disabled:opacity-40"
+        class="upload-settings-btn inline-flex size-8 items-center justify-center rounded-md bg-default/70 text-muted backdrop-blur-sm transition-colors hover:bg-elevated hover:text-highlighted disabled:pointer-events-none disabled:opacity-40"
-        aria-label="上传设置"
+        :aria-label="t('upload.settings')"
         :disabled="disabled"
         @click="openSettings"
       >
@@ -102,39 +114,31 @@ function openSettings() {
       </button>
     </div>
 
-    <div class="mx-auto max-w-lg space-y-4">
+    <div class="relative z-10 mx-auto flex max-w-lg flex-col items-center">
-      <div
+      <div class="flex flex-col items-center">
-        class="mx-auto flex size-16 items-center justify-center rounded-2xl bg-primary/10 transition-transform duration-300 ease-out"
+        <img
-        :class="isActive ? 'scale-110' : 'group-hover/upload:scale-105'"
+          :src="uploadCardHero"
+          alt=""
+          aria-hidden="true"
+          class="h-24 w-auto -mb-3 select-none transition-transform duration-200 ease-[cubic-bezier(0.4,0,0.2,1)] sm:-mb-4 sm:h-28 md:h-32"
+          :class="dragging ? 'scale-105' : 'group-hover/upload:scale-[1.02]'"
+          decoding="async"
+          draggable="false"
         >
-        <UIcon
+
-          name="i-lucide-cloud-upload"
-          class="size-8 text-primary transition-transform duration-300"
-          :class="isActive ? '-translate-y-0.5' : ''"
-        />
-      </div>
         <div class="space-y-2">
-        <p class="text-xl font-semibold tracking-tight">
+          <p class="text-xl font-semibold tracking-tight text-highlighted sm:text-2xl">
-          拖拽图片到此处上传
+            {{ t('upload.title') }}
           </p>
-        <p class="text-sm text-muted">
+          <p class="text-sm text-muted sm:text-base">
-          或点击选择文件，按
+            {{ t('upload.hint', { ctrl: 'Ctrl', v: 'V' }) }}
-          <kbd class="mx-1 rounded border border-default bg-muted/50 px-1.5 py-0.5 font-mono text-xs">Ctrl</kbd>
-          +
-          <kbd class="mx-1 rounded border border-default bg-muted/50 px-1.5 py-0.5 font-mono text-xs">V</kbd>
-          粘贴图片
           </p>
         </div>
-      <p class="text-xs text-dimmed">
+      </div>
-        支持 JPEG / PNG / WebP / GIF / SVG / ICO，单张最大 10 MB，每次最多 10 张
+
+      <p class="mt-4 max-w-md text-xs leading-relaxed text-dimmed sm:text-sm">
+        {{ t('upload.formats') }}
       </p>
-      <UButton
-        label="选择图片"
-        icon="i-lucide-upload"
-        size="lg"
-        :disabled="disabled"
-        @click="openFilePicker"
-      />
     </div>
   </div>
 </template>

app/components/LocaleMenu.vue

@@ -0,0 +1,16 @@
+<script setup lang="ts">
+const { localeMenuItems } = useAppearanceMenus()
+const { t } = useI18n()
+</script>
+
+<template>
+  <UDropdownMenu :items="localeMenuItems">
+    <UButton
+      icon="i-lucide-languages"
+      variant="ghost"
+      color="neutral"
+      size="sm"
+      :aria-label="t('locale.switch')"
+    />
+  </UDropdownMenu>
+</template>

app/components/MobileNavMenu.vue

@@ -0,0 +1,85 @@
+<script setup lang="ts">
+defineProps<{
+  items: Array<{ label: string, to: string, icon: string }>
+}>()
+
+const open = defineModel<boolean>('open', { default: false })
+
+const route = useRoute()
+const { t } = useI18n()
+const menuRef = ref<HTMLElement | null>(null)
+
+function isActive(to: string) {
+  return route.path.startsWith(to)
+}
+
+function onDocumentClick(event: MouseEvent) {
+  if (!open.value || !menuRef.value) return
+  const target = event.target
+  if (target instanceof Node && !menuRef.value.contains(target)) {
+    open.value = false
+  }
+}
+
+watch(() => route.path, () => {
+  open.value = false
+})
+
+watch(open, (isOpen) => {
+  if (isOpen) {
+    document.addEventListener('click', onDocumentClick, true)
+  } else {
+    document.removeEventListener('click', onDocumentClick, true)
+  }
+})
+
+onUnmounted(() => {
+  document.removeEventListener('click', onDocumentClick, true)
+})
+
+function toggleOpen() {
+  open.value = !open.value
+}
+</script>
+
+<template>
+  <div
+    ref="menuRef"
+    class="relative sm:hidden"
+  >
+    <UButton
+      variant="outline"
+      color="neutral"
+      size="sm"
+      icon="i-lucide-menu"
+      :aria-label="t('nav.menu')"
+      :aria-expanded="open"
+      @click.stop="toggleOpen"
+    />
+
+    <div
+      v-show="open"
+      class="absolute top-full right-0 z-50 mt-2 w-52 rounded-xl border border-default bg-default p-1.5 shadow-lg"
+      @click.stop
+    >
+      <nav class="space-y-0.5">
+        <NuxtLink
+          v-for="item in items"
+          :key="item.to"
+          :to="item.to"
+          class="flex items-center gap-3 rounded-lg px-3 py-2.5 text-sm font-medium transition-colors"
+          :class="isActive(item.to)
+            ? 'bg-primary/10 text-primary'
+            : 'text-highlighted hover:bg-elevated'"
+          @click="open = false"
+        >
+          <UIcon
+            :name="item.icon"
+            class="size-4 shrink-0 opacity-70"
+          />
+          {{ item.label }}
+        </NuxtLink>
+      </nav>
+    </div>
+  </div>
+</template>

app/components/MobileUserMenu.vue

@@ -0,0 +1,178 @@
+<script setup lang="ts">
+const open = defineModel<boolean>('open', { default: false })
+
+const { logout } = useAuth()
+const { t, locale } = useI18n()
+const colorMode = useColorMode()
+const {
+  localeOptions,
+  themeOptions,
+  setLocalePreference,
+  setThemePreference
+} = useAppearanceMenus()
+
+const menuRef = ref<HTMLElement | null>(null)
+
+async function handleLogout() {
+  open.value = false
+  await logout()
+}
+
+function onDocumentClick(event: MouseEvent) {
+  if (!open.value || !menuRef.value) return
+  const target = event.target
+  if (target instanceof Node && !menuRef.value.contains(target)) {
+    open.value = false
+  }
+}
+
+watch(open, (isOpen) => {
+  if (isOpen) {
+    document.addEventListener('click', onDocumentClick, true)
+  } else {
+    document.removeEventListener('click', onDocumentClick, true)
+  }
+})
+
+onUnmounted(() => {
+  document.removeEventListener('click', onDocumentClick, true)
+})
+
+function toggleOpen() {
+  open.value = !open.value
+}
+</script>
+
+<template>
+  <div
+    ref="menuRef"
+    class="relative sm:hidden"
+  >
+    <UButton
+      variant="ghost"
+      color="neutral"
+      size="sm"
+      icon="i-lucide-user"
+      :aria-label="t('nav.account')"
+      :aria-expanded="open"
+      @click.stop="toggleOpen"
+    />
+
+    <div
+      v-show="open"
+      class="absolute top-full right-0 z-50 mt-2 w-[min(20rem,calc(100vw-2rem))] rounded-xl border border-default bg-default p-4 shadow-lg"
+      @click.stop
+    >
+      <section class="space-y-2">
+        <h3 class="flex items-center gap-2 px-1 text-sm font-medium text-muted">
+          <UIcon
+            name="i-lucide-globe"
+            class="size-4"
+          />
+          {{ t('nav.language') }}
+        </h3>
+        <div class="space-y-2">
+          <button
+            v-for="item in localeOptions"
+            :key="item.code"
+            type="button"
+            class="flex w-full items-center justify-between rounded-lg border px-3.5 py-2.5 text-sm transition-colors"
+            :class="locale === item.code
+              ? 'border-primary text-highlighted'
+              : 'border-default text-highlighted hover:bg-elevated'"
+            @click="setLocalePreference(item.code)"
+          >
+            <span>{{ item.label }}</span>
+            <UIcon
+              v-if="locale === item.code"
+              name="i-lucide-check"
+              class="size-4 text-primary"
+            />
+          </button>
+        </div>
+      </section>
+
+      <section class="mt-5 space-y-2">
+        <h3 class="flex items-center gap-2 px-1 text-sm font-medium text-muted">
+          <UIcon
+            name="i-lucide-sun"
+            class="size-4"
+          />
+          {{ t('nav.appearance') }}
+        </h3>
+        <div class="space-y-2">
+          <button
+            v-for="item in themeOptions"
+            :key="item.value"
+            type="button"
+            class="flex w-full items-center justify-between rounded-lg border px-3.5 py-2.5 text-sm transition-colors"
+            :class="colorMode.preference === item.value
+              ? 'border-primary text-highlighted'
+              : 'border-default text-highlighted hover:bg-elevated'"
+            @click="setThemePreference(item.value)"
+          >
+            <span class="flex items-center gap-2.5">
+              <UIcon
+                :name="item.icon"
+                class="size-4 opacity-70"
+              />
+              {{ item.label }}
+            </span>
+            <UIcon
+              v-if="colorMode.preference === item.value"
+              name="i-lucide-check"
+              class="size-4 text-primary"
+            />
+          </button>
+        </div>
+      </section>
+
+      <section class="mt-5 space-y-2">
+        <h3 class="flex items-center gap-2 px-1 text-sm font-medium text-muted">
+          <UIcon
+            name="i-lucide-user"
+            class="size-4"
+          />
+          {{ t('nav.account') }}
+        </h3>
+        <div class="space-y-2">
+          <NuxtLink
+            to="/account/password"
+            class="flex items-center justify-between rounded-lg border border-default px-3.5 py-2.5 text-sm text-highlighted transition-colors hover:bg-elevated"
+            @click="open = false"
+          >
+            <span class="flex items-center gap-2.5">
+              <UIcon
+                name="i-lucide-lock"
+                class="size-4 opacity-70"
+              />
+              {{ t('nav.changePassword') }}
+            </span>
+            <UIcon
+              name="i-lucide-chevron-right"
+              class="size-4 text-muted"
+            />
+          </NuxtLink>
+
+          <button
+            type="button"
+            class="flex w-full items-center justify-between rounded-lg border border-default px-3.5 py-2.5 text-sm text-error transition-colors hover:bg-error/5"
+            @click="handleLogout"
+          >
+            <span class="flex items-center gap-2.5">
+              <UIcon
+                name="i-lucide-log-out"
+                class="size-4"
+              />
+              {{ t('nav.logout') }}
+            </span>
+            <UIcon
+              name="i-lucide-chevron-right"
+              class="size-4 opacity-60"
+            />
+          </button>
+        </div>
+      </section>
+    </div>
+  </div>
+</template>

app/components/PaginationBar.vue

@@ -11,7 +11,9 @@ const emit = defineEmits<{
   'update:page': [page: number]
 }>()
 
-const unitLabel = computed(() => props.unit ?? '条')
+const { t } = useI18n()
+
+const unitLabel = computed(() => props.unit ?? t('common.itemsUnit'))
 
 function goTo(target: number) {
   if (target < 1 || target > props.totalPages || target === props.page || props.loading) {
@@ -30,13 +32,13 @@ function goTo(target: number) {
       v-if="totalPages > 1"
       class="text-sm text-muted"
     >
-      第 {{ page }} / {{ totalPages }} 页 · 共 {{ total }} {{ unitLabel }}
+      {{ t('pagination.pageOf', { page, totalPages, total, unit: unitLabel }) }}
     </p>
     <p
       v-else
       class="text-sm text-muted"
     >
-      共 {{ total }} {{ unitLabel }}
+      {{ t('pagination.totalOnly', { total, unit: unitLabel }) }}
     </p>
 
     <div
@@ -47,7 +49,7 @@ function goTo(target: number) {
         icon="i-lucide-chevrons-left"
         variant="outline"
         size="sm"
-        aria-label="第一页"
+        :aria-label="t('pagination.first')"
         :disabled="page <= 1 || loading"
         @click="goTo(1)"
       />
@@ -55,7 +57,7 @@ function goTo(target: number) {
         icon="i-lucide-chevron-left"
         variant="outline"
         size="sm"
-        aria-label="上一页"
+        :aria-label="t('pagination.prev')"
         :disabled="page <= 1 || loading"
         @click="goTo(page - 1)"
       />
@@ -63,7 +65,7 @@ function goTo(target: number) {
         icon="i-lucide-chevron-right"
         variant="outline"
         size="sm"
-        aria-label="下一页"
+        :aria-label="t('pagination.next')"
         :disabled="page >= totalPages || loading"
         @click="goTo(page + 1)"
       />
@@ -71,7 +73,7 @@ function goTo(target: number) {
         icon="i-lucide-chevrons-right"
         variant="outline"
         size="sm"
-        aria-label="最后一页"
+        :aria-label="t('pagination.last')"
         :disabled="page >= totalPages || loading"
         @click="goTo(totalPages)"
       />

app/components/PasswordInput.vue

@@ -0,0 +1,50 @@
+<script setup lang="ts">
+defineOptions({
+  inheritAttrs: false
+})
+
+const model = defineModel<string>({ default: '' })
+
+defineProps<{
+  id?: string
+  placeholder?: string
+  autocomplete?: string
+}>()
+
+const show = ref(false)
+const { t } = useI18n()
+</script>
+
+<template>
+  <UInput
+    :id="id"
+    v-model="model"
+    :type="show ? 'text' : 'password'"
+    :placeholder="placeholder"
+    :autocomplete="autocomplete"
+    size="lg"
+    class="w-full"
+    :ui="{ root: 'w-full', trailing: 'pe-1' }"
+    v-bind="$attrs"
+  >
+    <template #trailing>
+      <UButton
+        color="neutral"
+        variant="link"
+        size="sm"
+        :icon="show ? 'i-lucide-eye-off' : 'i-lucide-eye'"
+        :aria-label="show ? t('auth.hidePassword') : t('auth.showPassword')"
+        :aria-pressed="show"
+        :aria-controls="id"
+        type="button"
+        @click="() => { show = !show }"
+      />
+    </template>
+  </UInput>
+</template>
+
+<style scoped>
+:deep(::-ms-reveal) {
+  display: none;
+}
+</style>

app/components/PasswordStrength.vue

@@ -5,15 +5,17 @@ const props = defineProps<{
   password: string
 }>()
 
+const { t } = useI18n()
+
 const analysis = computed(() => analyzePassword(props.password))
 
 const show = computed(() => props.password.length > 0)
 
 const labelColor = computed(() => {
   switch (analysis.value.label) {
-    case '强':
+    case 'strong':
       return 'text-success'
-    case '中':
+    case 'medium':
       return 'text-warning'
     default:
       return 'text-error'
@@ -22,9 +24,9 @@ const labelColor = computed(() => {
 
 const barColor = computed(() => {
   switch (analysis.value.label) {
-    case '强':
+    case 'strong':
       return 'bg-success'
-    case '中':
+    case 'medium':
       return 'bg-warning'
     default:
       return 'bg-error/80'
@@ -32,10 +34,10 @@ const barColor = computed(() => {
 })
 
 const rules = computed(() => [
-  { key: 'minLength', label: `至少 ${PASSWORD_MIN_LENGTH} 个字符` },
+  { key: 'minLength', label: t('password.ruleMinLength', { n: PASSWORD_MIN_LENGTH }) },
-  { key: 'mixedCase', label: '包含大小写字母' },
+  { key: 'mixedCase', label: t('password.ruleMixedCase') },
-  { key: 'hasNumber', label: '包含数字' },
+  { key: 'hasNumber', label: t('password.ruleNumber') },
-  { key: 'hasSpecial', label: '包含特殊字符' }
+  { key: 'hasSpecial', label: t('password.ruleSpecial') }
 ] as const)
 </script>
 
@@ -45,12 +47,12 @@ const rules = computed(() => [
     class="space-y-3 rounded-lg border border-default bg-muted/20 px-3 py-3"
   >
     <div class="flex items-center justify-between text-sm">
-      <span class="text-muted">密码强度</span>
+      <span class="text-muted">{{ t('password.strength') }}</span>
       <span
         class="font-medium"
         :class="labelColor"
       >
-        {{ analysis.label }}
+        {{ t(`password.${analysis.label}`) }}
       </span>
     </div>
 

app/components/ThemeMenu.vue

@@ -0,0 +1,16 @@
+<script setup lang="ts">
+const { themeIcon, themeMenuItems } = useAppearanceMenus()
+const { t } = useI18n()
+</script>
+
+<template>
+  <UDropdownMenu :items="themeMenuItems">
+    <UButton
+      :icon="themeIcon"
+      variant="ghost"
+      color="neutral"
+      size="sm"
+      :aria-label="t('theme.switch')"
+    />
+  </UDropdownMenu>
+</template>

app/components/UploadPreferencesPanel.vue

@@ -20,6 +20,8 @@ const {
   loadPreferences
 } = useUploadPreferences()
 
+const { t } = useI18n()
+
 const {
   userSettings,
   enabled: userAutoDeleteEnabled,
@@ -27,16 +29,16 @@ const {
   load: loadUserSettings
 } = useUserAutoDeleteSettings()
 
-const copyFormatItems = [
+const copyFormatItems = computed(() => [
-  { label: '直链', value: 'url' as const },
+  { label: t('copy.url'), value: 'url' as const },
-  { label: 'Markdown', value: 'markdown' as const },
+  { label: t('copy.markdown'), value: 'markdown' as const },
-  { label: 'HTML', value: 'html' as const }
+  { label: t('copy.html'), value: 'html' as const }
-]
+])
 
 const clientQualityLevel = computed(() => {
-  if (clientWebpQuality.value >= 85) return '高质量'
+  if (clientWebpQuality.value >= 85) return t('preferences.qualityHigh')
-  if (clientWebpQuality.value >= 60) return '中等质量'
+  if (clientWebpQuality.value >= 60) return t('preferences.qualityMedium')
-  return '有损压缩'
+  return t('preferences.qualityLow')
 })
 
 function setCopyFormat(value: 'url' | 'markdown' | 'html') {
@@ -56,9 +58,11 @@ onMounted(() => {
 
 <template>
   <div
-    class="flex flex-col overflow-hidden"
+    class="flex flex-col overflow-hidden max-sm:overflow-visible"
     :class="
-      embedded ? '' : 'upload-card-surface upload-card-surface--panel h-full'
+      embedded
+        ? ''
+        : 'upload-card-surface upload-card-surface--panel max-sm:min-h-0 sm:h-full'
     "
   >
     <div
@@ -71,22 +75,22 @@ onMounted(() => {
         />
         <div class="min-w-0">
           <h2 class="text-base font-semibold">
-            上传偏好
+            {{ t('preferences.title') }}
           </h2>
           <p class="mt-0.5 text-xs text-muted">
-            浏览器本地与账号设置，仅影响您的上传体验
+            {{ t('preferences.subtitle') }}
           </p>
         </div>
       </div>
       <UButton
         v-if="!embedded"
-        label="返回"
+        :label="t('common.back')"
         icon="i-lucide-arrow-left"
         variant="ghost"
         color="neutral"
         size="sm"
         class="shrink-0"
-        aria-label="返回上传"
+        :aria-label="t('preferences.back')"
         @click="emit('back')"
       />
     </div>
@@ -98,7 +102,7 @@ onMounted(() => {
       <div class="grid gap-5 sm:grid-cols-3 sm:gap-6">
         <div class="space-y-4">
           <h3 class="text-sm font-semibold">
-            图片处理
+            {{ t('preferences.processing') }}
           </h3>
 
           <label class="flex cursor-pointer items-start gap-2.5">
@@ -107,9 +111,9 @@ onMounted(() => {
               class="mt-0.5"
             />
             <span>
-              <span class="block text-sm">客户端预压缩</span>
+              <span class="block text-sm">{{ t('preferences.clientCompress') }}</span>
               <span class="mt-1 block text-xs leading-relaxed text-muted">
-                上传前在浏览器端压缩（服务端仍会转 WebP）
+                {{ t('preferences.clientCompressHint') }}
               </span>
             </span>
           </label>
@@ -127,7 +131,7 @@ onMounted(() => {
                 <span
                   class="flex flex-wrap items-center gap-x-1.5 gap-y-1 text-sm"
                 >
-                  <span>自动删除超过</span>
+                  <span>{{ t('preferences.autoDeletePrefix') }}</span>
                   <UInput
                     v-model.number="userAutoDeleteDaysDraft"
                     type="number"
@@ -141,10 +145,10 @@ onMounted(() => {
                         : 'pointer-events-none opacity-40'
                     "
                   />
-                  <span>天的图片</span>
+                  <span>{{ t('preferences.autoDeleteSuffix') }}</span>
                 </span>
                 <span class="mt-1 block text-xs leading-relaxed text-muted">
-                  仅清理开启后上传的图片，不影响此前已存的图片
+                  {{ t('preferences.autoDeleteHint') }}
                 </span>
               </span>
             </label>
@@ -162,15 +166,15 @@ onMounted(() => {
 
         <div class="space-y-4">
           <h3 class="text-sm font-semibold">
-            WebP 压缩质量
+            {{ t('preferences.webpQuality') }}
           </h3>
           <p class="text-xs leading-relaxed text-muted">
-            客户端预压缩质量（1–100），需开启「客户端预压缩」
+            {{ t('preferences.webpQualityHint') }}
           </p>
           <div
             class="flex items-center justify-between gap-2 text-sm text-muted"
           >
-            <span>当前：{{ clientWebpQuality }}</span>
+            <span>{{ t('preferences.current', { n: clientWebpQuality }) }}</span>
             <span>{{ clientQualityLevel }}</span>
           </div>
           <input
@@ -185,7 +189,7 @@ onMounted(() => {
 
         <div class="space-y-4">
           <h3 class="text-sm font-semibold">
-            便捷功能
+            {{ t('preferences.convenience') }}
           </h3>
           <label class="flex cursor-pointer items-start gap-2.5">
             <UCheckbox
@@ -193,9 +197,9 @@ onMounted(() => {
               class="mt-0.5"
             />
             <span>
-              <span class="block text-sm">上传成功自动复制链接</span>
+              <span class="block text-sm">{{ t('preferences.autoCopy') }}</span>
               <span class="mt-1 block text-xs leading-relaxed text-muted">
-                按所选格式复制到剪贴板
+                {{ t('preferences.autoCopyHint') }}
               </span>
             </span>
           </label>

app/components/UploadResult.vue

@@ -4,6 +4,21 @@ import type { UploadProgressItem } from '~/types/image'
 defineProps<{
   items: UploadProgressItem[]
 }>()
+
+const { t } = useI18n()
+
+function statusLabel(status: UploadProgressItem['status']) {
+  switch (status) {
+    case 'pending':
+      return t('upload.statusPending')
+    case 'uploading':
+      return t('upload.statusUploading')
+    case 'success':
+      return t('upload.statusSuccess')
+    default:
+      return t('upload.statusError')
+  }
+}
 </script>
 
 <template>
@@ -12,7 +27,7 @@ defineProps<{
     class="space-y-2 rounded-lg border border-default p-4"
   >
     <p class="text-sm font-medium text-muted">
-      上传进度
+      {{ t('upload.progress') }}
     </p>
     <div
       v-for="item in items"
@@ -26,7 +41,7 @@ defineProps<{
           variant="subtle"
           size="xs"
         >
-          {{ item.status === 'pending' ? '等待' : item.status === 'uploading' ? '上传中' : item.status === 'success' ? '成功' : '失败' }}
+          {{ statusLabel(item.status) }}
         </UBadge>
       </div>
       <UProgress

app/components/storage/StorageBackendCard.vue

@@ -0,0 +1,215 @@
+<script setup lang="ts">
+import type { StorageBackendItem } from '~/types/storage'
+
+type CardAction = {
+  key: string
+  icon: string
+  label: string
+  shortLabel: string
+  danger?: boolean
+  disabled?: boolean
+  onClick: () => void
+}
+
+const props = defineProps<{
+  backend: StorageBackendItem
+  envOverride?: boolean
+  busy?: boolean
+}>()
+
+const emit = defineEmits<{
+  setDefault: []
+  edit: []
+  test: []
+  toggleEnabled: []
+  delete: []
+}>()
+
+const { t } = useI18n()
+
+const typeIcon = computed(() =>
+  props.backend.type === 'local' ? 'i-lucide-hard-drive' : 'i-lucide-cloud'
+)
+
+const typeLabel = computed(() =>
+  props.backend.type === 'local' ? t('storage.backendLocal') : t('storage.backendCloud')
+)
+
+const servingLabel = computed(() =>
+  props.backend.servingMode === 'public'
+    ? t('storage.servingPublic')
+    : t('storage.servingProxy')
+)
+
+const bucketLine = computed(() => {
+  if (props.backend.type !== 's3') return null
+  return props.backend.config.bucket || t('storage.notConfigured')
+})
+
+const actionsDisabled = computed(() => props.envOverride || props.busy)
+
+const actions = computed<CardAction[]>(() => {
+  const isLocal = props.backend.type === 'local'
+  const items: CardAction[] = []
+
+  if (!props.backend.isDefault && props.backend.enabled) {
+    items.push({
+      key: 'default',
+      icon: 'i-lucide-star',
+      label: t('storage.setDefault'),
+      shortLabel: isLocal ? t('storage.setDefault') : t('storage.actionSetDefault'),
+      onClick: () => emit('setDefault')
+    })
+  }
+
+  if (props.backend.type === 's3') {
+    items.push({
+      key: 'edit',
+      icon: 'i-lucide-pencil',
+      label: t('common.edit'),
+      shortLabel: t('common.edit'),
+      onClick: () => emit('edit')
+    })
+  }
+
+  items.push({
+    key: 'test',
+    icon: 'i-lucide-plug-zap',
+    label: t('storage.testConnection'),
+    shortLabel: isLocal ? t('storage.testConnection') : t('storage.actionTest'),
+    onClick: () => emit('test')
+  })
+
+  if (props.backend.type !== 'local') {
+    items.push({
+      key: 'toggle',
+      icon: props.backend.enabled ? 'i-lucide-pause' : 'i-lucide-play',
+      label: props.backend.enabled ? t('storage.disable') : t('storage.enable'),
+      shortLabel: props.backend.enabled ? t('storage.disable') : t('storage.enable'),
+      disabled: props.backend.isDefault && props.backend.enabled,
+      onClick: () => emit('toggleEnabled')
+    })
+  }
+
+  if (props.backend.type !== 'local' && !props.backend.isDefault) {
+    items.push({
+      key: 'delete',
+      icon: 'i-lucide-trash-2',
+      label: t('common.delete'),
+      shortLabel: t('common.delete'),
+      danger: true,
+      onClick: () => emit('delete')
+    })
+  }
+
+  return items
+})
+
+const actionGridClass = computed(() => {
+  switch (actions.value.length) {
+    case 1: return 'grid-cols-1'
+    case 2: return 'grid-cols-2'
+    case 3: return 'grid-cols-3'
+    case 4: return 'grid-cols-4'
+    default: return 'grid-cols-5'
+  }
+})
+</script>
+
+<template>
+  <article
+    class="flex h-full flex-col rounded-2xl border border-default bg-elevated p-4 shadow-sm"
+    :class="{
+      'ring-2 ring-primary/30': backend.isDefault,
+      'opacity-75': !backend.enabled
+    }"
+  >
+    <div class="mb-3 flex items-start justify-between gap-2">
+      <div class="flex min-w-0 items-start gap-2.5">
+        <div
+          class="flex size-9 shrink-0 items-center justify-center rounded-lg bg-primary/10 text-primary"
+        >
+          <UIcon
+            :name="typeIcon"
+            class="size-4.5"
+          />
+        </div>
+        <div class="min-w-0">
+          <h3 class="truncate text-sm font-semibold">
+            {{ backend.name }}
+          </h3>
+          <p class="mt-0.5 text-xs text-muted">
+            {{ typeLabel }}
+            <template v-if="bucketLine">
+              · {{ bucketLine }}
+            </template>
+          </p>
+        </div>
+      </div>
+      <div class="flex shrink-0 flex-wrap justify-end gap-1">
+        <UBadge
+          v-if="backend.enabled"
+          color="success"
+          variant="subtle"
+          size="xs"
+        >
+          {{ t('storage.badgeEnabled') }}
+        </UBadge>
+        <UBadge
+          v-if="backend.isDefault"
+          color="primary"
+          variant="subtle"
+          size="xs"
+        >
+          {{ t('storage.badgeDefault') }}
+        </UBadge>
+        <UBadge
+          v-if="!backend.enabled"
+          color="warning"
+          variant="subtle"
+          size="xs"
+        >
+          {{ t('storage.badgeDisabled') }}
+        </UBadge>
+      </div>
+    </div>
+
+    <StorageUsageBar
+      :capacity="backend.capacity"
+      :index-bytes="backend.usage.bytes"
+    />
+
+    <p class="mt-3 text-xs text-muted">
+      {{ t('storage.servingMode') }}: {{ servingLabel }}
+    </p>
+
+    <div class="mt-4 border-t border-default pt-4">
+      <div
+        class="grid gap-1.5"
+        :class="actionGridClass"
+      >
+        <button
+          v-for="action in actions"
+          :key="action.key"
+          type="button"
+          class="flex flex-col items-center justify-center gap-1 rounded-lg border px-1 py-2 transition disabled:cursor-not-allowed disabled:opacity-40"
+          :class="action.danger
+            ? 'border-error/30 text-error hover:bg-error/5'
+            : 'border-default text-muted hover:bg-muted/40 hover:text-highlighted'"
+          :title="action.label"
+          :aria-label="action.label"
+          :disabled="actionsDisabled || action.disabled"
+          @click="action.onClick"
+        >
+          <UIcon
+            :name="action.icon"
+            class="size-4 shrink-0"
+          />
+          <span class="w-full truncate text-center text-[11px] leading-none">
+            {{ action.shortLabel }}
+          </span>
+        </button>
+      </div>
+    </div>
+  </article>
+</template>

app/components/storage/StorageBackendForm.vue

@@ -0,0 +1,330 @@
+<script setup lang="ts">
+import type { QuotaUnit } from '~/composables/useFileSize'
+import type { StorageBackendItem } from '~/types/storage'
+
+type StorageProvider = 'r2' | 'cos' | 'oss' | 'aws' | 'custom'
+
+export interface StorageFormPayload {
+  name: string
+  config: {
+    endpoint: string
+    region: string
+    bucket: string
+    prefix?: string
+    forcePathStyle: boolean
+  }
+  secrets: {
+    accessKeyId: string
+    secretAccessKey: string
+  }
+  servingMode: 'proxy' | 'public'
+  publicUrl: string
+  quotaValue: string
+  quotaUnit: QuotaUnit
+}
+
+const props = defineProps<{
+  backend?: StorageBackendItem | null
+  createMode?: boolean
+  saving?: boolean
+}>()
+
+const emit = defineEmits<{
+  submit: [payload: StorageFormPayload]
+  cancel: []
+}>()
+
+const { t } = useI18n()
+const { bytesToQuotaInput, QUOTA_UNITS } = useFileSize()
+
+const name = ref('')
+const provider = ref<StorageProvider>('r2')
+const endpoint = ref('')
+const region = ref('auto')
+const bucket = ref('')
+const prefix = ref('')
+const forcePathStyle = ref(false)
+const accessKeyId = ref('')
+const secretAccessKey = ref('')
+const servingMode = ref<'proxy' | 'public'>('proxy')
+const publicUrl = ref('')
+const quotaValue = ref('')
+const quotaUnit = ref<QuotaUnit>('GB')
+
+const quotaUnitOptions = computed(() =>
+  QUOTA_UNITS.map(unit => ({ label: unit, value: unit }))
+)
+
+const providerOptions = computed(() => [
+  { label: t('storage.providerR2'), value: 'r2' as const },
+  { label: t('storage.providerCos'), value: 'cos' as const },
+  { label: t('storage.providerOss'), value: 'oss' as const },
+  { label: t('storage.providerAws'), value: 'aws' as const },
+  { label: t('storage.providerCustom'), value: 'custom' as const }
+])
+
+const servingModeOptions = computed(() => [
+  { label: t('storage.servingProxy'), value: 'proxy' },
+  { label: t('storage.servingPublic'), value: 'public' }
+])
+
+function providerLabel(value: StorageProvider): string {
+  return providerOptions.value.find(option => option.value === value)?.label
+    ?? t('storage.backendCloud')
+}
+
+function applyProviderTemplate(value: StorageProvider) {
+  if (!props.createMode && props.backend) return
+  if (props.createMode) {
+    name.value = providerLabel(value)
+  }
+  switch (value) {
+    case 'r2':
+      endpoint.value = 'https://{account_id}.r2.cloudflarestorage.com'
+      region.value = 'auto'
+      forcePathStyle.value = false
+      break
+    case 'cos':
+      endpoint.value = 'https://cos.{region}.myqcloud.com'
+      region.value = 'ap-guangzhou'
+      forcePathStyle.value = true
+      break
+    case 'oss':
+      endpoint.value = 'https://oss-{region}.aliyuncs.com'
+      region.value = 'cn-hangzhou'
+      forcePathStyle.value = false
+      break
+    case 'aws':
+      endpoint.value = 'https://s3.{region}.amazonaws.com'
+      region.value = 'us-east-1'
+      forcePathStyle.value = false
+      break
+    default:
+      break
+  }
+}
+
+function detectProvider(config: StorageBackendItem['config']): StorageProvider {
+  const ep = config.endpoint ?? ''
+  if (ep.includes('r2.cloudflarestorage.com')) return 'r2'
+  if (ep.includes('myqcloud.com')) return 'cos'
+  if (ep.includes('aliyuncs.com')) return 'oss'
+  if (ep.includes('amazonaws.com')) return 'aws'
+  return 'custom'
+}
+
+function loadBackend(backend: StorageBackendItem | null | undefined) {
+  if (!backend || backend.type !== 's3') {
+    if (props.createMode) {
+      name.value = ''
+      provider.value = 'r2'
+      applyProviderTemplate('r2')
+      bucket.value = ''
+      prefix.value = ''
+      accessKeyId.value = ''
+      secretAccessKey.value = ''
+      servingMode.value = 'proxy'
+      publicUrl.value = ''
+      quotaValue.value = ''
+      quotaUnit.value = 'GB'
+    }
+    return
+  }
+
+  name.value = backend.name
+  provider.value = detectProvider(backend.config)
+  endpoint.value = backend.config.endpoint ?? ''
+  region.value = backend.config.region ?? 'auto'
+  bucket.value = backend.config.bucket ?? ''
+  prefix.value = backend.config.prefix ?? ''
+  forcePathStyle.value = backend.config.forcePathStyle ?? false
+  servingMode.value = backend.servingMode
+  publicUrl.value = backend.publicUrl
+  const quota = bytesToQuotaInput(backend.quotaBytes)
+  quotaValue.value = quota.value
+  quotaUnit.value = quota.unit
+  accessKeyId.value = ''
+  secretAccessKey.value = ''
+}
+
+watch(() => props.backend, loadBackend, { immediate: true })
+
+watch(provider, (value) => {
+  if (props.createMode) {
+    applyProviderTemplate(value)
+  }
+})
+
+function handleSubmit() {
+  emit('submit', {
+    name: name.value.trim() || providerLabel(provider.value),
+    config: {
+      endpoint: endpoint.value.trim(),
+      region: region.value.trim() || 'auto',
+      bucket: bucket.value.trim(),
+      prefix: prefix.value.trim() || undefined,
+      forcePathStyle: forcePathStyle.value
+    },
+    secrets: {
+      accessKeyId: accessKeyId.value.trim(),
+      secretAccessKey: secretAccessKey.value.trim()
+    },
+    servingMode: servingMode.value,
+    publicUrl: publicUrl.value.trim(),
+    quotaValue: String(quotaValue.value ?? '').trim(),
+    quotaUnit: quotaUnit.value
+  })
+}
+</script>
+
+<template>
+  <form
+    class="space-y-4"
+    @submit.prevent="handleSubmit"
+  >
+    <div class="space-y-2">
+      <label class="text-sm">{{ t('storage.provider') }}</label>
+      <USelect
+        v-model="provider"
+        :items="providerOptions"
+        class="w-full"
+      />
+    </div>
+
+    <div class="space-y-2">
+      <label class="text-sm">{{ t('storage.backendName') }}</label>
+      <UInput
+        v-model="name"
+        class="w-full"
+      />
+    </div>
+
+    <div class="space-y-2">
+      <label class="text-sm">{{ t('storage.endpoint') }}</label>
+      <UInput
+        v-model="endpoint"
+        class="w-full font-mono text-sm"
+      />
+    </div>
+
+    <div class="grid gap-3 sm:grid-cols-2">
+      <div class="space-y-2">
+        <label class="text-sm">{{ t('storage.region') }}</label>
+        <UInput
+          v-model="region"
+          class="w-full font-mono text-sm"
+        />
+      </div>
+      <div class="space-y-2">
+        <label class="text-sm">{{ t('storage.bucket') }}</label>
+        <UInput
+          v-model="bucket"
+          class="w-full font-mono text-sm"
+          required
+        />
+      </div>
+    </div>
+
+    <div class="space-y-2">
+      <label class="text-sm">{{ t('storage.prefix') }}</label>
+      <UInput
+        v-model="prefix"
+        :placeholder="t('storage.prefixPlaceholder')"
+        class="w-full font-mono text-sm"
+      />
+    </div>
+
+    <label class="flex cursor-pointer items-center gap-2">
+      <UCheckbox v-model="forcePathStyle" />
+      <span class="text-sm">{{ t('storage.forcePathStyle') }}</span>
+    </label>
+
+    <div class="grid gap-3 sm:grid-cols-2">
+      <div class="space-y-2">
+        <label class="text-sm">{{ t('storage.accessKey') }}</label>
+        <UInput
+          v-model="accessKeyId"
+          :placeholder="backend?.secretsMasked.accessKeyId || ''"
+          class="w-full font-mono text-sm"
+          :required="createMode"
+        />
+      </div>
+      <div class="space-y-2">
+        <label class="text-sm">{{ t('storage.secretKey') }}</label>
+        <UInput
+          v-model="secretAccessKey"
+          type="password"
+          :placeholder="backend?.secretsMasked.secretAccessKey || ''"
+          class="w-full font-mono text-sm"
+          :required="createMode"
+        />
+      </div>
+    </div>
+
+    <div class="space-y-2">
+      <label class="text-sm">{{ t('storage.servingMode') }}</label>
+      <URadioGroup
+        v-model="servingMode"
+        :items="servingModeOptions"
+      />
+      <p class="text-xs text-muted">
+        {{ t('storage.servingHint') }}
+      </p>
+    </div>
+
+    <div
+      v-if="servingMode === 'public'"
+      class="space-y-2"
+    >
+      <label class="text-sm">{{ t('storage.publicUrl') }}</label>
+      <UInput
+        v-model="publicUrl"
+        :placeholder="t('storage.publicUrlPlaceholder')"
+        class="w-full font-mono text-sm"
+      />
+    </div>
+
+    <div class="space-y-2">
+      <label class="text-sm">
+        {{ t('storage.quotaTotal') }}
+        <span class="text-error">*</span>
+      </label>
+      <div class="flex gap-2">
+        <UInput
+          :model-value="String(quotaValue)"
+          type="number"
+          min="0"
+          step="any"
+          required
+          :placeholder="t('storage.quotaPlaceholder')"
+          class="min-w-0 flex-1"
+          @update:model-value="quotaValue = String($event ?? '')"
+        />
+        <USelect
+          v-model="quotaUnit"
+          :items="quotaUnitOptions"
+          class="w-24 shrink-0"
+        />
+      </div>
+      <p class="text-xs text-muted">
+        {{ t('storage.quotaHint') }}
+      </p>
+    </div>
+
+    <div class="flex justify-end gap-2 pt-2">
+      <UButton
+        type="button"
+        :label="t('common.cancel')"
+        variant="outline"
+        color="neutral"
+        @click="emit('cancel')"
+      />
+      <UButton
+        type="submit"
+        :label="t('common.save')"
+        icon="i-lucide-save"
+        :loading="saving"
+      />
+    </div>
+  </form>
+</template>

app/components/storage/StorageUsageBar.vue

@@ -0,0 +1,91 @@
+<script setup lang="ts">
+import type { StorageCapacity } from '~/types/storage'
+
+const props = defineProps<{
+  capacity: StorageCapacity
+  indexBytes: number
+}>()
+
+const { formatFileSize } = useFileSize()
+
+const displayUsedBytes = computed(() =>
+  props.capacity.source === 'disk' ? props.capacity.usedBytes : props.indexBytes
+)
+
+const hasBar = computed(() =>
+  props.capacity.totalBytes != null && props.capacity.totalBytes > 0
+)
+
+const displayPercent = computed(() => props.capacity.percent ?? 0)
+
+const overQuota = computed(() =>
+  props.capacity.source === 'quota' && displayPercent.value > 100
+)
+
+const barWidth = computed(() => {
+  if (!hasBar.value) return 0
+  const percent = Math.min(displayPercent.value, 100)
+  return Math.max(percent, displayUsedBytes.value > 0 ? 4 : 0)
+})
+
+function formatOptional(bytes: number | null): string {
+  if (bytes == null) return '—'
+  return formatFileSize(bytes)
+}
+</script>
+
+<template>
+  <div class="space-y-3">
+    <div class="grid grid-cols-3 gap-2 text-center text-xs">
+      <div class="rounded-lg bg-muted/30 px-2 py-2">
+        <p class="text-muted">
+          {{ $t('storage.statTotal') }}
+        </p>
+        <p class="mt-1 font-medium tabular-nums text-highlighted">
+          {{ formatOptional(capacity.totalBytes) }}
+        </p>
+      </div>
+      <div class="rounded-lg bg-muted/30 px-2 py-2">
+        <p class="text-muted">
+          {{ $t('storage.statUsed') }}
+        </p>
+        <p class="mt-1 font-medium tabular-nums text-highlighted">
+          {{ formatFileSize(displayUsedBytes) }}
+        </p>
+      </div>
+      <div class="rounded-lg bg-muted/30 px-2 py-2">
+        <p class="text-muted">
+          {{ $t('storage.statFree') }}
+        </p>
+        <p
+          class="mt-1 font-medium tabular-nums"
+          :class="overQuota ? 'text-error' : 'text-highlighted'"
+        >
+          {{ formatOptional(capacity.freeBytes) }}
+        </p>
+      </div>
+    </div>
+
+    <div
+      v-if="hasBar"
+      class="space-y-1"
+    >
+      <div class="flex items-center justify-between text-xs">
+        <span class="text-muted">{{ $t('storage.usageRate') }}</span>
+        <span
+          class="tabular-nums font-medium"
+          :class="overQuota ? 'text-error' : ''"
+        >
+          {{ displayPercent }}%
+        </span>
+      </div>
+      <div class="h-1.5 overflow-hidden rounded-full bg-muted/50">
+        <div
+          class="h-full rounded-full transition-all"
+          :class="overQuota ? 'bg-error/80' : 'bg-primary/70'"
+          :style="{ width: `${barWidth}%` }"
+        />
+      </div>
+    </div>
+  </div>
+</template>

app/composables/useAppearanceMenus.ts

@@ -0,0 +1,100 @@
+import type { DropdownMenuItem } from '@nuxt/ui'
+
+export function useAppearanceMenus() {
+  const colorMode = useColorMode()
+  const { locale, locales, setLocale, t } = useI18n()
+
+  const themeIcon = computed(() => {
+    if (colorMode.preference === 'system') return 'i-lucide-monitor'
+    return colorMode.preference === 'dark' ? 'i-lucide-moon' : 'i-lucide-sun'
+  })
+
+  const localeMenuItems = computed<DropdownMenuItem[][]>(() => [[
+    ...locales.value.map(loc => ({
+      label: t(`locale.${loc.code}`),
+      icon: 'i-lucide-languages',
+      type: 'checkbox' as const,
+      checked: locale.value === loc.code,
+      onUpdateChecked(checked: boolean) {
+        if (checked && typeof loc.code === 'string') {
+          void setLocale(loc.code)
+        }
+      }
+    }))
+  ]])
+
+  const themeMenuItems = computed<DropdownMenuItem[][]>(() => [[
+    {
+      label: t('theme.light'),
+      icon: 'i-lucide-sun',
+      type: 'checkbox',
+      checked: colorMode.preference === 'light',
+      onUpdateChecked(checked: boolean) {
+        if (checked) colorMode.preference = 'light'
+      }
+    },
+    {
+      label: t('theme.dark'),
+      icon: 'i-lucide-moon',
+      type: 'checkbox',
+      checked: colorMode.preference === 'dark',
+      onUpdateChecked(checked: boolean) {
+        if (checked) colorMode.preference = 'dark'
+      }
+    },
+    {
+      label: t('theme.system'),
+      icon: 'i-lucide-monitor',
+      type: 'checkbox',
+      checked: colorMode.preference === 'system',
+      onUpdateChecked(checked: boolean) {
+        if (checked) colorMode.preference = 'system'
+      }
+    }
+  ]])
+
+  const themeOptions = computed(() => [
+    {
+      value: 'light' as const,
+      label: t('theme.light'),
+      icon: 'i-lucide-sun'
+    },
+    {
+      value: 'dark' as const,
+      label: t('theme.dark'),
+      icon: 'i-lucide-moon'
+    },
+    {
+      value: 'system' as const,
+      label: t('theme.system'),
+      icon: 'i-lucide-monitor'
+    }
+  ])
+
+  const localeOptions = computed(() =>
+    locales.value.map(loc => ({
+      code: String(loc.code),
+      label: t(`locale.${loc.code}`)
+    }))
+  )
+
+  function setThemePreference(value: 'light' | 'dark' | 'system') {
+    colorMode.preference = value
+  }
+
+  async function setLocalePreference(code: string) {
+    if (code === 'zh-CN' || code === 'en') {
+      await setLocale(code)
+    }
+  }
+
+  return {
+    themeIcon,
+    localeMenuItems,
+    themeMenuItems,
+    localeOptions,
+    themeOptions,
+    setThemePreference,
+    setLocalePreference
+  }
+}

app/composables/useAuth.ts

@@ -26,13 +26,15 @@ export function isUnauthorizedError(error: unknown): boolean {
 export const AUTH_USERNAME_PATTERN = /^[a-zA-Z0-9_]{3,32}$/
 export const AUTH_MIN_PASSWORD_LENGTH = 8
 
-export function validateAuthInput(username: string, password: string): string | null {
+export type AuthValidationErrorKey = 'invalidUsername' | 'invalidPassword'
+
+export function validateAuthInput(username: string, password: string): AuthValidationErrorKey | null {
   const trimmed = username.trim()
   if (!AUTH_USERNAME_PATTERN.test(trimmed)) {
-    return '用户名需为 3–32 位字母、数字或下划线'
+    return 'invalidUsername'
   }
   if (password.length < AUTH_MIN_PASSWORD_LENGTH) {
-    return '密码至少 8 位'
+    return 'invalidPassword'
   }
   return null
 }
@@ -65,6 +67,7 @@ export function getFetchErrorMessage(error: unknown, fallback: string): string {
 export type AuthActionResult = { ok: true } | { ok: false, error: string }
 
 export function useAuth() {
+  const { t } = useI18n()
   const status = useState<AuthStatus>('auth-status', () => 'checking')
   const user = useState<AuthUser | null>('auth-user', () => null)
   const authStatus = useState<AuthStatusResponse | null>('auth-status-response', () => null)
@@ -131,7 +134,7 @@ export function useAuth() {
     } catch (error: unknown) {
       return {
         ok: false,
-        error: getFetchErrorMessage(error, '登录失败，请检查用户名和密码')
+        error: getFetchErrorMessage(error, t('auth.loginFailed'))
       }
     }
   }
@@ -142,7 +145,7 @@ export function useAuth() {
   ): Promise<AuthActionResult> {
     const validationError = validateAuthInput(username, password)
     if (validationError) {
-      return { ok: false, error: validationError }
+      return { ok: false, error: t(`auth.errors.${validationError}`) }
     }
 
     try {
@@ -161,7 +164,7 @@ export function useAuth() {
     } catch (error: unknown) {
       return {
         ok: false,
-        error: getFetchErrorMessage(error, '注册失败，请检查输入')
+        error: getFetchErrorMessage(error, t('auth.registerFailed'))
       }
     }
   }
@@ -173,7 +176,7 @@ export function useAuth() {
   }): Promise<AuthActionResult> {
     const validationError = validateAuthInput(input.username, input.password)
     if (validationError) {
-      return { ok: false, error: validationError }
+      return { ok: false, error: t(`auth.errors.${validationError}`) }
     }
 
     try {
@@ -196,7 +199,7 @@ export function useAuth() {
     } catch (error: unknown) {
       return {
         ok: false,
-        error: getFetchErrorMessage(error, '初始化失败，请检查输入')
+        error: getFetchErrorMessage(error, t('auth.setupFailed'))
       }
     }
   }
@@ -208,7 +211,7 @@ export function useAuth() {
   }): Promise<AuthActionResult> {
     const validationError = validateAuthInput(input.username, input.password)
     if (validationError) {
-      return { ok: false, error: validationError }
+      return { ok: false, error: t(`auth.errors.${validationError}`) }
     }
 
     try {
@@ -231,7 +234,7 @@ export function useAuth() {
     } catch (error: unknown) {
       return {
         ok: false,
-        error: getFetchErrorMessage(error, '迁移失败，请检查输入')
+        error: getFetchErrorMessage(error, t('auth.migrateFailed'))
       }
     }
   }
@@ -241,7 +244,7 @@ export function useAuth() {
     newPassword: string
   ): Promise<AuthActionResult> {
     if (newPassword.length < AUTH_MIN_PASSWORD_LENGTH) {
-      return { ok: false, error: '新密码至少 8 位' }
+      return { ok: false, error: t('password.tooShort') }
     }
 
     try {
@@ -254,7 +257,7 @@ export function useAuth() {
     } catch (error: unknown) {
       return {
         ok: false,
-        error: getFetchErrorMessage(error, '修改密码失败')
+        error: getFetchErrorMessage(error, t('password.changeFailed'))
       }
     }
   }

app/composables/useFileSize.ts

@@ -1,10 +1,55 @@
-export function useFileSize() {
+export const QUOTA_UNITS = ['KB', 'MB', 'GB', 'TB'] as const
-  function formatFileSize(bytes: number): string {
+export type QuotaUnit = typeof QUOTA_UNITS[number]
+
+export function formatFileSize(bytes: number): string {
   if (!Number.isFinite(bytes) || bytes < 0) return '-'
+  if (bytes === 0) return '0 B'
   if (bytes < 1024) return `${bytes} B`
-    if (bytes < 1024 * 1024) return `${(bytes / 1024).toFixed(1)} KB`
+
-    return `${(bytes / (1024 * 1024)).toFixed(2)} MB`
+  const units = ['KB', 'MB', 'GB', 'TB'] as const
+  let value = bytes / 1024
+  let unitIndex = 0
+
+  while (unitIndex < units.length - 1 && value >= 1024) {
+    value /= 1024
+    unitIndex++
   }
 
-  return { formatFileSize }
+  const decimals = value >= 100 ? 0 : value >= 10 ? 1 : 2
+  return `${value.toFixed(decimals)} ${units[unitIndex]}`
+}
+
+export function bytesToQuotaInput(bytes: number | null): { value: string, unit: QuotaUnit } {
+  if (!bytes || bytes <= 0) {
+    return { value: '', unit: 'GB' }
+  }
+
+  let value = bytes / 1024
+  let unitIndex = 0
+
+  while (unitIndex < QUOTA_UNITS.length - 1 && value >= 1024) {
+    value /= 1024
+    unitIndex++
+  }
+
+  const decimals = value >= 100 ? 0 : value >= 10 ? 1 : 2
+  const rounded = Number(value.toFixed(decimals))
+  const unit: QuotaUnit = QUOTA_UNITS[unitIndex] ?? 'GB'
+  return { value: String(rounded), unit }
+}
+
+export function quotaToBytes(value: string | number, unit: QuotaUnit): number | null {
+  const trimmed = String(value ?? '').trim()
+  if (!trimmed) return null
+  const amount = Number(trimmed)
+  if (!Number.isFinite(amount) || amount <= 0) return null
+
+  const unitIndex = QUOTA_UNITS.indexOf(unit)
+  if (unitIndex < 0) return null
+
+  return Math.round(amount * 1024 ** (unitIndex + 1))
+}
+
+export function useFileSize() {
+  return { formatFileSize, bytesToQuotaInput, quotaToBytes, QUOTA_UNITS }
 }

app/composables/useImageList.ts

@@ -6,6 +6,7 @@ import type {
 const PAGE_SIZE = 12
 
 export function useImageList() {
+  const { t } = useI18n()
   const items = ref<ImageItem[]>([])
   const page = ref(1)
   const totalPages = ref(1)
@@ -165,17 +166,15 @@ export function useImageList() {
 
   const listSummary = computed(() => {
     const folder = activeFolder.value.trim() || 'all'
-    const folderLabel = folder === 'all' ? '全部' : folder
+    const folderLabel = folder === 'all' ? t('stats.allFolders') : folder
     if (loadingTotal.value && folderTotal.value === null) {
-      return `${folderLabel} · 统计中…`
+      return `${folderLabel} · ${t('stats.counting')}`
     }
     if (activeSearch.value) {
-      return `${folderLabel} · 搜索「${activeSearch.value}」· 共 ${total.value} 张`
+      return t('stats.summarySearch', { folder: folderLabel, q: activeSearch.value, total: total.value })
     }
-    if (folderTotal.value === null) {
+    const count = folderTotal.value === null ? total.value : folderTotal.value
-      return `${folderLabel} · 共 ${total.value} 张`
+    return t('stats.summaryTotal', { folder: folderLabel, total: count })
-    }
-    return `${folderLabel} · 共 ${folderTotal.value} 张`
   })
 
   return {
@@ -189,6 +188,7 @@ export function useImageList() {
     activeSearch,
     listSummary,
     fetchList,
+    fetchSearch,
     fetchTotal,
     refreshList,
     initializeList,

app/composables/useImageUpload.ts

@@ -9,6 +9,7 @@ const MAX_FILES = 10
 
 export function useImageUpload() {
   const toast = useToast()
+  const { t } = useI18n()
   const { compressEnabled, clientWebpQuality } = useUploadPreferences()
   const uploading = ref(false)
   const progressItems = ref<UploadProgressItem[]>([])
@@ -22,13 +23,13 @@ export function useImageUpload() {
     if (uploading.value) return
 
     if (!files.length) {
-      toast.add({ title: '请选择图片', color: 'warning' })
+      toast.add({ title: t('upload.selectImages'), color: 'warning' })
       return
     }
 
     if (files.length > MAX_FILES) {
       toast.add({
-        title: `每次最多上传 ${MAX_FILES} 张图片`,
+        title: t('upload.maxFiles', { n: MAX_FILES }),
         color: 'warning'
       })
       return
@@ -80,14 +81,14 @@ export function useImageUpload() {
 
       if (response.items.length && options?.notify !== false) {
         toast.add({
-          title: `成功上传 ${response.items.length} 张图片`,
+          title: t('upload.uploadSuccess', { n: response.items.length }),
           color: 'success'
         })
       }
 
       if (response.errors.length) {
         toast.add({
-          title: `${response.errors.length} 张图片上传失败`,
+          title: t('upload.uploadPartialFail', { n: response.errors.length }),
           color: 'warning'
         })
       }
@@ -97,7 +98,7 @@ export function useImageUpload() {
       if (isUnauthorizedError(error)) {
         throw error
       }
-      const message = error instanceof Error ? error.message : '上传失败'
+      const message = error instanceof Error ? error.message : t('upload.uploadFailed')
       progressItems.value = progressItems.value.map(item => ({
         ...item,
         status: 'error',

app/composables/useUserAutoDeleteSettings.ts

@@ -1,6 +1,7 @@
 export function useUserAutoDeleteSettings() {
   const { isAuthenticated, handleAuthError } = useAuth()
   const toast = useToast()
+  const { t } = useI18n()
 
   const userSettings = ref<{ autoDeleteDays: number } | null>(null)
   const enabled = ref(false)
@@ -29,7 +30,7 @@ export function useUserAutoDeleteSettings() {
     } catch (error: unknown) {
       handleAuthError(error)
       if (isAuthenticated.value) {
-        toast.add({ title: '加载设置失败', color: 'error' })
+        toast.add({ title: t('userSettings.loadFailed'), color: 'error' })
       }
     }
   }
@@ -51,7 +52,7 @@ export function useUserAutoDeleteSettings() {
     } catch (error: unknown) {
       handleAuthError(error)
       if (isAuthenticated.value) {
-        toast.add({ title: '保存设置失败', color: 'error' })
+        toast.add({ title: t('userSettings.saveFailed'), color: 'error' })
       }
     } finally {
       saving.value = false

app/pages/account/password.vue

@@ -10,6 +10,7 @@ const {
   changePassword
 } = useAuth()
 const toast = useToast()
+const { t } = useI18n()
 
 const currentPassword = ref('')
 const newPassword = ref('')
@@ -37,7 +38,7 @@ async function submit() {
   if (!canSubmit.value || loading.value) return
 
   if (newPassword.value !== confirmPassword.value) {
-    toast.add({ title: '两次输入的新密码不一致', color: 'error' })
+    toast.add({ title: t('auth.passwordMismatch'), color: 'error' })
     return
   }
 
@@ -48,7 +49,7 @@ async function submit() {
       currentPassword.value = ''
       newPassword.value = ''
       confirmPassword.value = ''
-      toast.add({ title: '密码已修改', color: 'success' })
+      toast.add({ title: t('password.changed'), color: 'success' })
       await router.replace('/')
     } else {
       toast.add({ title: result.error, color: 'error' })
@@ -71,7 +72,7 @@ async function submit() {
           class="size-8 animate-spin"
         />
         <p class="text-sm">
-          正在验证登录状态…
+          {{ t('common.loadingSession') }}
         </p>
       </div>
     </div>
@@ -82,10 +83,10 @@ async function submit() {
       <section class="mx-auto max-w-md overflow-hidden rounded-2xl border border-default bg-elevated shadow-sm">
         <div class="border-b border-default px-5 py-4 sm:px-6">
           <h1 class="text-lg font-semibold tracking-tight">
-            修改密码
+            {{ t('password.title') }}
           </h1>
           <p class="mt-1 text-sm text-muted">
-            修改您的登录密码
+            {{ t('password.subtitle') }}
           </p>
         </div>
 
@@ -98,16 +99,12 @@ async function submit() {
               for="current-password"
               class="block text-sm font-medium"
             >
-              当前密码
+              {{ t('password.current') }}
             </label>
-            <UInput
+            <PasswordInput
               id="current-password"
               v-model="currentPassword"
-              type="password"
               autocomplete="current-password"
-              size="lg"
-              class="w-full"
-              :ui="{ root: 'w-full' }"
             />
           </div>
 
@@ -116,17 +113,13 @@ async function submit() {
               for="new-password"
               class="block text-sm font-medium"
             >
-              新密码
+              {{ t('password.new') }}
             </label>
-            <UInput
+            <PasswordInput
               id="new-password"
               v-model="newPassword"
-              type="password"
+              :placeholder="t('password.newPlaceholder')"
-              placeholder="设置新密码"
               autocomplete="new-password"
-              size="lg"
-              class="w-full"
-              :ui="{ root: 'w-full' }"
             />
             <PasswordStrength :password="newPassword" />
           </div>
@@ -136,29 +129,25 @@ async function submit() {
               for="confirm-new-password"
               class="block text-sm font-medium"
             >
-              确认新密码
+              {{ t('password.confirmNew') }}
             </label>
-            <UInput
+            <PasswordInput
               id="confirm-new-password"
               v-model="confirmPassword"
-              type="password"
               autocomplete="new-password"
-              size="lg"
-              class="w-full"
-              :ui="{ root: 'w-full' }"
             />
           </div>
 
           <div class="flex gap-2 pt-1">
             <UButton
               type="submit"
-              label="保存"
+              :label="t('common.save')"
               icon="i-lucide-save"
               :loading="loading"
               :disabled="!canSubmit"
             />
             <UButton
-              label="取消"
+              :label="t('common.cancel')"
               variant="ghost"
               color="neutral"
               to="/"

app/pages/api.vue

@@ -22,6 +22,7 @@ interface ApiDocItem {
 
 const { isChecking, isAuthenticated, checkSession, handleAuthError, fetchStatus, isAdmin } = useAuth()
 const toast = useToast()
+const { t } = useI18n()
 
 const settings = ref<SettingsResponse | null>(null)
 const loading = ref(false)
@@ -49,8 +50,8 @@ const authHeaderFlag = computed(() => `-H 'Auth-Token: ${authHeader.value}'`)
 
 const apiDocs = computed<ApiDocItem[]>(() => {
   const uploadDescription = isAdmin.value
-    ? '上传单张或多张图片。字段 image 传图片，folder 指定目录（不存在则自动创建）；仍兼容 file、files、type。'
+    ? t('api.docs.upload.descAdmin')
-    : '上传单张或多张图片。字段 image 传图片；仍兼容 file、files。图片固定存入 images/ 目录。'
+    : t('api.docs.upload.descUser')
   const uploadCurl = isAdmin.value
     ? `curl -X POST "${baseUrl.value}/api/images/upload" \\
   ${authHeaderFlag.value} \\
@@ -66,8 +67,8 @@ curl -X POST "${baseUrl.value}/api/images/upload" \\
   -F "image=@./demo.png"`
 
   const listDescription = isAdmin.value
-    ? '分页列出图库，folder 可筛选目录，limit 默认 20、最大 100。'
+    ? t('api.docs.list.descAdmin')
-    : '分页列出您的图库，limit 默认 20、最大 100。'
+    : t('api.docs.list.descUser')
   const listCurl = isAdmin.value
     ? `curl "${baseUrl.value}/api/images?limit=20&page=1" \\
   ${authHeaderFlag.value}
@@ -83,7 +84,7 @@ curl "${baseUrl.value}/api/images?folder=blog&limit=20&page=1" \\
       index: 1,
       method: 'POST',
       path: '/api/images/upload',
-      title: '上传图片',
+      title: t('api.docs.upload.title'),
       description: uploadDescription,
       curl: uploadCurl
     },
@@ -91,7 +92,7 @@ curl "${baseUrl.value}/api/images?folder=blog&limit=20&page=1" \\
       index: 2,
       method: 'GET',
       path: '/api/images',
-      title: '获取图片列表',
+      title: t('api.docs.list.title'),
       description: listDescription,
       curl: listCurl
     },
@@ -99,8 +100,8 @@ curl "${baseUrl.value}/api/images?folder=blog&limit=20&page=1" \\
       index: 3,
       method: 'GET',
       path: '/api/images/search',
-      title: '搜索图片',
+      title: t('api.docs.search.title'),
-      description: '按文件名或路径关键词搜索，参数 q 必填。',
+      description: t('api.docs.search.desc'),
       curl: `curl "${baseUrl.value}/api/images/search?q=demo&limit=20&page=1" \\
   ${authHeaderFlag.value}`
     },
@@ -108,8 +109,8 @@ curl "${baseUrl.value}/api/images?folder=blog&limit=20&page=1" \\
       index: 4,
       method: 'DELETE',
       path: '/api/images',
-      title: '删除图片',
+      title: t('api.docs.delete.title'),
-      description: '通过 key 删除单张图片，key 为存储路径（如 images/2026/08/xxx.webp）。',
+      description: t('api.docs.delete.desc'),
       curl: `curl -X DELETE "${baseUrl.value}/api/images?key=images/2026/08/xxxx.webp" \\
   ${authHeaderFlag.value}`
     },
@@ -117,8 +118,8 @@ curl "${baseUrl.value}/api/images?folder=blog&limit=20&page=1" \\
       index: 5,
       method: 'POST',
       path: '/api/images/batch-delete',
-      title: '批量删除',
+      title: t('api.docs.batchDelete.title'),
-      description: '一次删除多张图片，请求体为 keys 数组。',
+      description: t('api.docs.batchDelete.desc'),
       curl: `curl -X POST "${baseUrl.value}/api/images/batch-delete" \\
   ${authHeaderFlag.value} \\
   -H "Content-Type: application/json" \\
@@ -130,8 +131,8 @@ curl "${baseUrl.value}/api/images?folder=blog&limit=20&page=1" \\
 const twikooDoc = computed(() => ({
   method: 'POST' as const,
   path: '/api/index.php',
-  title: 'twikoo 兼容上传',
+  title: t('api.docs.twikoo.title'),
-  description: '兼容 Twikoo / EasyImage 2.0 协议，图片存入 twikoo/ 目录；字段 image + token。',
+  description: t('api.docs.twikoo.desc'),
   curl: `curl -X POST "${baseUrl.value}/api/index.php" \\
   -F "token=${authHeader.value}" \\
   -F "image=@./demo.png"`
@@ -140,11 +141,11 @@ const twikooDoc = computed(() => ({
 function tokenSourceLabel(source: SettingsResponse['tokenSource']) {
   switch (source) {
     case 'env':
-      return '来源：环境变量 API_UPLOAD_TOKEN'
+      return t('api.tokenSourceEnv')
     case 'db':
-      return '来源：后台生成（可重新生成）'
+      return t('api.tokenSourceDb')
     default:
-      return '来源：未配置'
+      return t('api.tokenSourceNone')
   }
 }
 
@@ -169,7 +170,7 @@ async function loadSettings() {
   } catch (error: unknown) {
     handleAuthError(error)
     if (isAuthenticated.value) {
-      toast.add({ title: '加载 API 设置失败', color: 'error' })
+      toast.add({ title: t('api.loadFailed'), color: 'error' })
     }
   } finally {
     loading.value = false
@@ -203,11 +204,11 @@ async function confirmRegenerate() {
         : 0
       if (status === 409) {
         toast.add({
-          title: '环境变量已配置 Token，无法在后台重新生成',
+          title: t('api.regenerateEnvBlocked'),
           color: 'warning'
         })
       } else {
-        toast.add({ title: '重新生成 Token 失败', color: 'error' })
+        toast.add({ title: t('api.regenerateFailed'), color: 'error' })
       }
     }
   } finally {
@@ -218,9 +219,9 @@ async function confirmRegenerate() {
 async function copyCurl(text: string) {
   try {
     await navigator.clipboard.writeText(text)
-    toast.add({ title: '已复制 cURL 示例', color: 'success' })
+    toast.add({ title: t('copy.curl'), color: 'success' })
   } catch {
-    toast.add({ title: '复制失败', color: 'error' })
+    toast.add({ title: t('copy.failed'), color: 'error' })
   }
 }
 
@@ -263,7 +264,7 @@ watch(isAuthenticated, async (authed) => {
           class="size-8 animate-spin"
         />
         <p class="text-sm">
-          正在验证登录状态…
+          {{ t('common.loadingSession') }}
         </p>
       </div>
     </div>
@@ -278,7 +279,7 @@ watch(isAuthenticated, async (authed) => {
             class="size-5 text-primary"
           />
           <h2 class="text-base font-semibold">
-            API Token
+            {{ t('api.tokenTitle') }}
           </h2>
         </div>
 
@@ -288,8 +289,8 @@ watch(isAuthenticated, async (authed) => {
             color="warning"
             variant="subtle"
             icon="i-lucide-triangle-alert"
-            title="Token 由环境变量覆盖"
+            :title="t('api.envOverrideTitle')"
-            description="修改 API_UPLOAD_TOKEN 后需重启服务；后台无法重新生成。"
+            :description="t('api.envOverrideDesc')"
           />
 
           <UAlert
@@ -297,8 +298,8 @@ watch(isAuthenticated, async (authed) => {
             color="info"
             variant="subtle"
             icon="i-lucide-info"
-            title="个人 API Token"
+            :title="t('api.personalTitle')"
-            description="此 Token 仅用于您自己的脚本上传，上传的图片归属您的账号。"
+            :description="t('api.personalDesc')"
           />
 
           <UAlert
@@ -306,25 +307,25 @@ watch(isAuthenticated, async (authed) => {
             color="info"
             variant="subtle"
             icon="i-lucide-info"
-            title="尚未配置 Token"
+            :title="t('api.notConfiguredTitle')"
-            description="点击「重新生成」创建 Token，用于下方所有接口的 Auth-Token 鉴权。"
+            :description="t('api.notConfiguredDesc')"
           />
 
           <div class="flex flex-col gap-2 sm:flex-row sm:items-stretch">
             <UInput
-              :model-value="hasToken ? tokenDisplay : '（未配置）'"
+              :model-value="hasToken ? tokenDisplay : t('common.notConfigured')"
               readonly
               class="min-w-0 flex-1 font-mono text-xs sm:text-sm"
               :loading="loading"
             />
             <div class="flex gap-2">
               <CopyButton
-                label="复制"
+                :label="t('common.copy')"
                 :value="tokenDisplay"
               />
               <UButton
                 icon="i-lucide-refresh-cw"
-                label="重新生成"
+                :label="t('api.regenerate')"
                 color="warning"
                 variant="soft"
                 :loading="regenerating"
@@ -339,10 +340,10 @@ watch(isAuthenticated, async (authed) => {
             class="text-xs text-muted"
           >
             {{ tokenSourceLabel(settings.tokenSource) }}
-            · 请求头：
+            · {{ t('api.tokenHeader') }}
             <code class="font-mono">Auth-Token: &lt;token&gt;</code>
             <template v-if="hasToken && !settings.envTokenOverride">
-              · 重新生成后旧 Token 立即失效
+              · {{ t('api.tokenInvalidate') }}
             </template>
           </p>
         </div>
@@ -355,7 +356,7 @@ watch(isAuthenticated, async (authed) => {
             class="size-5 text-primary"
           />
           <h2 class="text-base font-semibold">
-            API 文档
+            {{ t('api.docsTitle') }}
           </h2>
         </div>
 
@@ -395,12 +396,12 @@ watch(isAuthenticated, async (authed) => {
 
             <div>
               <p class="mb-2 text-xs font-medium text-muted">
-                cURL 示例
+                {{ t('api.curlExample') }}
               </p>
               <div class="relative overflow-hidden rounded-xl bg-neutral-950">
                 <UButton
                   icon="i-lucide-copy"
-                  label="复制"
+                  :label="t('common.copy')"
                   size="xs"
                   variant="ghost"
                   color="neutral"
@@ -445,12 +446,12 @@ watch(isAuthenticated, async (authed) => {
 
           <div>
             <p class="mb-2 text-xs font-medium text-muted">
-              cURL 示例
+              {{ t('api.curlExample') }}
             </p>
             <div class="relative overflow-hidden rounded-xl bg-neutral-950">
               <UButton
                 icon="i-lucide-copy"
-                label="复制"
+                :label="t('common.copy')"
                 size="xs"
                 variant="ghost"
                 color="neutral"
@@ -466,20 +467,20 @@ watch(isAuthenticated, async (authed) => {
 
     <UModal
       :open="confirmRegenerateOpen"
-      title="确认重新生成 Token？"
+      :title="t('api.confirmRegenerateTitle')"
-      description="旧 Token 将立即失效，使用旧 Token 的脚本与自动化任务将无法继续调用接口，直到你更新为新 Token。"
+      :description="t('api.confirmRegenerateDesc')"
       @update:open="confirmRegenerateOpen = $event"
     >
       <template #footer>
         <div class="flex justify-end gap-2">
           <UButton
-            label="取消"
+            :label="t('common.cancel')"
             color="neutral"
             variant="outline"
             @click="closeConfirmRegenerate"
           />
           <UButton
-            label="确认重新生成"
+            :label="t('api.confirmRegenerate')"
             color="warning"
             :loading="regenerating"
             @click="confirmRegenerate"
@@ -490,8 +491,8 @@ watch(isAuthenticated, async (authed) => {
 
     <UModal
       :open="regenerateResultOpen"
-      title="新 Token 已生成"
+      :title="t('api.newTokenTitle')"
-      description="请立即复制保存。关闭弹窗后仍可在上方输入框复制，但请尽快更新到你的脚本配置中。"
+      :description="t('api.newTokenDesc')"
       @update:open="regenerateResultOpen = $event"
     >
       <template #body>
@@ -504,11 +505,11 @@ watch(isAuthenticated, async (authed) => {
       <template #footer>
         <div class="flex w-full flex-wrap justify-end gap-2">
           <CopyButton
-            label="复制 Token"
+            :label="t('api.copyToken')"
             :value="newToken"
           />
           <UButton
-            label="我已保存"
+            :label="t('api.saved')"
             @click="closeRegenerateResult"
           />
         </div>

app/pages/index.vue

@@ -13,6 +13,7 @@ const {
 const { isChecking, isAuthenticated, checkSession, handleAuthError, fetchStatus, isAdmin }
   = useAuth()
 const toast = useToast()
+const { t } = useI18n()
 const folderOptions = ref<string[]>(['images'])
 const sessionItems = ref<ImageItem[]>([])
 const deletingKeys = ref<Set<string>>(new Set())
@@ -76,11 +77,11 @@ watch(isAuthenticated, async (authed, prev) => {
 function copyFormatLabel() {
   switch (copyFormat.value) {
     case 'url':
-      return '直链'
+      return t('copy.url')
     case 'html':
-      return 'HTML'
+      return t('copy.html')
     default:
-      return 'Markdown'
+      return t('copy.markdown')
   }
 }
 
@@ -98,15 +99,15 @@ async function copyUploadLink(text: string) {
       document.execCommand('copy')
       document.body.removeChild(textarea)
     }
-    toast.add({ title: `已复制 ${copyFormatLabel()}`, color: 'success' })
+    toast.add({ title: t('copy.copiedFormat', { format: copyFormatLabel() }), color: 'success' })
   } catch {
-    toast.add({ title: '复制失败', color: 'error' })
+    toast.add({ title: t('copy.failed'), color: 'error' })
   }
 }
 
 async function handleUpload(files: File[]) {
   if (!isAuthenticated.value) {
-    toast.add({ title: '请先登录', color: 'warning' })
+    toast.add({ title: t('upload.loginRequired'), color: 'warning' })
     return
   }
 
@@ -149,10 +150,10 @@ async function handleDelete(key: string) {
       query: { key }
     })
     sessionItems.value = sessionItems.value.filter(item => item.key !== key)
-    toast.add({ title: '已删除', color: 'success' })
+    toast.add({ title: t('stats.deletedSingle'), color: 'success' })
   } catch (error: unknown) {
     handleAuthError(error)
-    toast.add({ title: '删除失败', color: 'error' })
+    toast.add({ title: t('stats.deleteFailed'), color: 'error' })
   } finally {
     deletingKeys.value.delete(key)
     deletingKeys.value = new Set(deletingKeys.value)
@@ -172,7 +173,7 @@ async function handleDelete(key: string) {
           class="size-8 animate-spin"
         />
         <p class="text-sm">
-          正在验证登录状态…
+          {{ t('common.loadingSession') }}
         </p>
       </div>
     </div>
@@ -196,7 +197,7 @@ async function handleDelete(key: string) {
       >
         <div class="flex items-center justify-between gap-2">
           <h2 class="text-lg font-medium">
-            本次上传
+            {{ t('upload.sessionTitle') }}
             <span class="ml-1 text-sm font-normal text-muted">({{ sessionItems.length }})</span>
           </h2>
         </div>
@@ -207,7 +208,7 @@ async function handleDelete(key: string) {
           :deleting-keys="deletingKeys"
           :selectable="false"
           :show-key="false"
-          empty-text="暂无本次上传"
+          :empty-text="t('upload.sessionEmpty')"
           @update:selected-keys="() => {}"
           @delete="handleDelete"
         />

app/pages/register.vue

@@ -6,6 +6,7 @@ import { isPasswordValid } from '~/utils/password-strength'
 const router = useRouter()
 const { register, fetchStatus } = useAuth()
 const toast = useToast()
+const { t } = useI18n()
 
 const username = ref('')
 const password = ref('')
@@ -21,7 +22,7 @@ const canSubmit = computed(() =>
 
 onMounted(async () => {
   const status = await fetchStatus()
-  if (!status.initialized) {
+  if (!status.initialized && !status.legacyMode) {
     await router.replace('/setup')
     return
   }
@@ -34,7 +35,7 @@ async function submit() {
   if (!canSubmit.value || loading.value) return
 
   if (password.value !== confirmPassword.value) {
-    toast.add({ title: '两次输入的密码不一致', color: 'error' })
+    toast.add({ title: t('auth.passwordMismatch'), color: 'error' })
     return
   }
 
@@ -42,7 +43,7 @@ async function submit() {
   try {
     const result = await register(username.value.trim(), password.value)
     if (result.ok) {
-      toast.add({ title: '注册成功', color: 'success' })
+      toast.add({ title: t('auth.registerSuccess'), color: 'success' })
       await router.replace('/')
     } else {
       toast.add({ title: result.error, color: 'error' })
@@ -54,7 +55,10 @@ async function submit() {
 </script>
 
 <template>
-  <div class="flex min-h-screen items-center justify-center bg-muted/30 p-4 sm:p-6">
+  <div class="relative flex min-h-screen items-center justify-center bg-muted/30 p-4 sm:p-6">
+    <div class="absolute top-4 right-4">
+      <AuthPagePreferences />
+    </div>
     <div class="w-full max-w-sm rounded-2xl border border-default bg-elevated p-6 shadow-lg sm:p-8">
       <div class="mb-8 space-y-3 text-center">
         <div class="mx-auto inline-flex items-center justify-center">
@@ -77,10 +81,10 @@ async function submit() {
         </div>
         <div class="space-y-1">
           <h1 class="text-xl font-bold tracking-tight sm:text-2xl">
-            注册账号
+            {{ t('register.title') }}
           </h1>
           <p class="text-sm text-muted">
-            创建 PicHost 用户账号
+            {{ t('register.subtitle') }}
           </p>
         </div>
       </div>
@@ -94,12 +98,12 @@ async function submit() {
             for="register-username"
             class="block text-sm font-medium text-default"
           >
-            用户名
+            {{ t('auth.username') }}
           </label>
           <UInput
             id="register-username"
             v-model="username"
-            placeholder="3–32 位字母、数字或下划线"
+            :placeholder="t('setup.usernamePlaceholder')"
             autocomplete="username"
             size="lg"
             class="w-full"
@@ -112,17 +116,13 @@ async function submit() {
             for="register-password"
             class="block text-sm font-medium text-default"
           >
-            密码
+            {{ t('auth.password') }}
           </label>
-          <UInput
+          <PasswordInput
             id="register-password"
             v-model="password"
-            type="password"
+            :placeholder="t('setup.passwordPlaceholder')"
-            placeholder="设置登录密码"
             autocomplete="new-password"
-            size="lg"
-            class="w-full"
-            :ui="{ root: 'w-full' }"
           />
           <PasswordStrength :password="password" />
         </div>
@@ -132,23 +132,19 @@ async function submit() {
             for="register-confirm"
             class="block text-sm font-medium text-default"
           >
-            确认密码
+            {{ t('auth.confirmPassword') }}
           </label>
-          <UInput
+          <PasswordInput
             id="register-confirm"
             v-model="confirmPassword"
-            type="password"
+            :placeholder="t('setup.confirmPlaceholder')"
-            placeholder="再次输入密码"
             autocomplete="new-password"
-            size="lg"
-            class="w-full"
-            :ui="{ root: 'w-full' }"
           />
         </div>
 
         <UButton
           type="submit"
-          label="注册"
+          :label="t('auth.register')"
           icon="i-lucide-user-plus"
           size="lg"
           block
@@ -158,12 +154,12 @@ async function submit() {
         />
 
         <p class="text-center text-sm text-muted">
-          已有账号？
+          {{ t('auth.hasAccount') }}
           <NuxtLink
             to="/"
             class="text-primary hover:underline"
           >
-            返回登录
+            {{ t('auth.backToLogin') }}
           </NuxtLink>
         </p>
       </form>

app/pages/settings/index.vue

@@ -21,6 +21,7 @@ interface SettingsResponse {
 const { isChecking, isAuthenticated, checkSession, handleAuthError, fetchStatus, isAdmin } = useAuth()
 const { defaultFolder, loadPreferences } = useUploadPreferences()
 const toast = useToast()
+const { t } = useI18n()
 
 const settings = ref<SettingsResponse | null>(null)
 const folderOptions = ref<string[]>(['images'])
@@ -44,24 +45,24 @@ const hasServerChanges = computed(() => {
 function sourceBadge(source: SettingSource | WebpQualitySource) {
   switch (source) {
     case 'env':
-      return { label: '.env', color: 'warning' as const }
+      return { label: t('settings.badgeEnv'), color: 'warning' as const }
     case 'db':
-      return { label: '已保存', color: 'success' as const }
+      return { label: t('settings.badgeSaved'), color: 'success' as const }
     case 'default':
-      return { label: '默认', color: 'neutral' as const }
+      return { label: t('settings.badgeDefault'), color: 'neutral' as const }
     default:
-      return { label: '未设置', color: 'neutral' as const }
+      return { label: t('settings.badgeUnset'), color: 'neutral' as const }
   }
 }
 
 function tokenSourceText(source: SettingSource) {
   switch (source) {
     case 'env':
-      return '环境变量'
+      return t('settings.tokenEnv')
     case 'db':
-      return '后台生成'
+      return t('settings.tokenDb')
     default:
-      return '未配置'
+      return t('settings.tokenNone')
   }
 }
 
@@ -93,7 +94,7 @@ function handlePatchError(error: unknown, fallback: string) {
   handleAuthError(error)
   if (!isAuthenticated.value) return
   if (errorStatus(error) === 409) {
-    toast.add({ title: '该项已由环境变量覆盖，无法在后台修改', color: 'warning' })
+    toast.add({ title: t('settings.envOverride'), color: 'warning' })
     void loadSettings()
     return
   }
@@ -110,9 +111,9 @@ async function saveServerSettings() {
       imageBaseUrl: imageBaseUrlDraft.value,
       allowRegistration: allowRegistrationDraft.value
     })
-    toast.add({ title: '服务器配置已保存', color: 'success' })
+    toast.add({ title: t('settings.saved'), color: 'success' })
   } catch (error: unknown) {
-    handlePatchError(error, '保存服务器配置失败')
+    handlePatchError(error, t('settings.saveFailed'))
   } finally {
     savingServer.value = false
   }
@@ -137,7 +138,7 @@ async function loadSettings() {
   } catch (error: unknown) {
     handleAuthError(error)
     if (isAuthenticated.value) {
-      toast.add({ title: '加载设置失败', color: 'error' })
+      toast.add({ title: t('settings.loadFailed'), color: 'error' })
     }
   }
 }
@@ -189,7 +190,7 @@ watch(isAuthenticated, async (authed) => {
           class="size-8 animate-spin"
         />
         <p class="text-sm">
-          正在验证登录状态…
+          {{ t('common.loadingSession') }}
         </p>
       </div>
     </div>
@@ -209,10 +210,10 @@ watch(isAuthenticated, async (authed) => {
           />
           <div class="min-w-0">
             <h1 class="text-base font-semibold">
-              系统设置
+              {{ t('settings.title') }}
             </h1>
             <p class="mt-0.5 text-xs text-muted">
-              保存后写入数据库；环境变量优先级更高
+              {{ t('settings.subtitle') }}
             </p>
           </div>
         </div>
@@ -224,13 +225,13 @@ watch(isAuthenticated, async (authed) => {
           <div class="grid gap-5 sm:grid-cols-3 sm:gap-6">
             <div class="space-y-4">
               <h3 class="text-sm font-semibold">
-                上传与账号
+                {{ t('settings.uploadAccount') }}
               </h3>
 
               <div class="space-y-2">
-                <label class="text-sm">默认上传目录</label>
+                <label class="text-sm">{{ t('settings.defaultFolder') }}</label>
                 <p class="text-xs leading-relaxed text-muted">
-                  保存在本机浏览器，仅影响您的上传目标目录
+                  {{ t('settings.defaultFolderHint') }}
                 </p>
                 <USelect
                   v-model="defaultFolder"
@@ -245,9 +246,9 @@ watch(isAuthenticated, async (authed) => {
                   class="mt-0.5"
                 />
                 <span>
-                  <span class="block text-sm">开放用户注册</span>
+                  <span class="block text-sm">{{ t('settings.allowRegistration') }}</span>
                   <span class="mt-1 block text-xs leading-relaxed text-muted">
-                    允许新用户自行注册（普通用户仅可见自己的图片）
+                    {{ t('settings.allowRegistrationHint') }}
                   </span>
                 </span>
               </label>
@@ -256,7 +257,7 @@ watch(isAuthenticated, async (authed) => {
             <div class="space-y-4">
               <div class="flex items-center justify-between gap-2">
                 <h3 class="text-sm font-semibold">
-                  访问控制
+                  {{ t('settings.accessControl') }}
                 </h3>
                 <UBadge
                   :color="sourceBadge(settings.refererSource).color"
@@ -267,11 +268,11 @@ watch(isAuthenticated, async (authed) => {
                 </UBadge>
               </div>
               <p class="text-xs leading-relaxed text-muted">
-                Referer 防盗链，逗号分隔允许引用的域名，留空不限制
+                {{ t('settings.refererHint') }}
               </p>
               <UTextarea
                 v-model="refererDraft"
-                placeholder="example.com, www.example.com"
+                :placeholder="t('settings.refererPlaceholder')"
                 :rows="4"
                 class="w-full font-mono text-sm"
               />
@@ -280,7 +281,7 @@ watch(isAuthenticated, async (authed) => {
             <div class="space-y-4">
               <div class="flex items-center justify-between gap-2">
                 <h3 class="text-sm font-semibold">
-                  链接生成
+                  {{ t('settings.linkGeneration') }}
                 </h3>
                 <UBadge
                   :color="sourceBadge(settings.imageBaseUrlSource).color"
@@ -291,18 +292,18 @@ watch(isAuthenticated, async (authed) => {
                 </UBadge>
               </div>
               <p class="text-xs leading-relaxed text-muted">
-                生成图片链接的 URL 前缀，内网访问建议填公网域名
+                {{ t('settings.imageBaseUrlHint') }}
               </p>
               <UInput
                 v-model="imageBaseUrlDraft"
-                placeholder="https://pic.example.com"
+                :placeholder="t('settings.imageBaseUrlPlaceholder')"
                 class="w-full font-mono text-sm"
               />
               <p
                 v-if="settings.imageBaseUrl"
                 class="text-xs text-muted"
               >
-                当前生效：<span class="font-mono break-all">{{ settings.imageBaseUrl }}</span>
+                {{ t('settings.imageBaseUrlActive', { url: settings.imageBaseUrl }) }}
               </p>
             </div>
           </div>
@@ -328,15 +329,15 @@ watch(isAuthenticated, async (authed) => {
               class="size-3.5 shrink-0"
             />
             <span>
-              API Token · {{ tokenSourceText(settings.tokenSource) }}
+              {{ t('settings.apiTokenLine', { source: tokenSourceText(settings.tokenSource), version: settings.appVersion }) }}
               <template v-if="hasServerChanges">
-                · <span class="text-warning">有未保存的更改</span>
+                · <span class="text-warning">{{ t('settings.unsavedChanges') }}</span>
               </template>
             </span>
           </div>
           <div class="flex flex-wrap items-center gap-2">
             <UButton
-              label="管理 Token"
+              :label="t('settings.manageToken')"
               icon="i-lucide-external-link"
               variant="outline"
               color="neutral"
@@ -344,7 +345,7 @@ watch(isAuthenticated, async (authed) => {
               to="/api"
             />
             <UButton
-              label="保存"
+              :label="t('common.save')"
               icon="i-lucide-save"
               size="sm"
               :loading="savingServer"

app/pages/setup.vue

@@ -7,8 +7,10 @@ const route = useRoute()
 const router = useRouter()
 const { setup, migrate, fetchStatus } = useAuth()
 const toast = useToast()
+const { t } = useI18n()
 
-const isMigrate = computed(() => route.query.migrate === '1')
+const needsMigration = ref(false)
+const isMigrate = computed(() => needsMigration.value || route.query.migrate === '1')
 
 const username = ref('')
 const password = ref('')
@@ -25,6 +27,11 @@ const canSubmit = computed(() =>
 
 onMounted(async () => {
   const status = await fetchStatus()
+  needsMigration.value = status.needsMigration
+  if (status.legacyMode && !status.needsMigration) {
+    await router.replace('/')
+    return
+  }
   if (status.initialized && !status.needsMigration) {
     await router.replace('/')
   }
@@ -34,7 +41,7 @@ async function submit() {
   if (!canSubmit.value || loading.value) return
 
   if (password.value !== confirmPassword.value) {
-    toast.add({ title: '两次输入的密码不一致', color: 'error' })
+    toast.add({ title: t('auth.passwordMismatch'), color: 'error' })
     return
   }
 
@@ -51,7 +58,7 @@ async function submit() {
 
     if (result.ok) {
       toast.add({
-        title: isMigrate.value ? '账号迁移完成' : '初始化完成',
+        title: isMigrate.value ? t('setup.migrateSuccess') : t('setup.initSuccess'),
         color: 'success'
       })
       await router.replace('/')
@@ -65,7 +72,10 @@ async function submit() {
 </script>
 
 <template>
-  <div class="flex min-h-screen items-center justify-center bg-muted/30 p-4 sm:p-6">
+  <div class="relative flex min-h-screen items-center justify-center bg-muted/30 p-4 sm:p-6">
+    <div class="absolute top-4 right-4">
+      <AuthPagePreferences />
+    </div>
     <div class="w-full max-w-sm rounded-2xl border border-default bg-elevated p-6 shadow-lg sm:p-8">
       <div class="mb-8 space-y-3 text-center">
         <div class="mx-auto inline-flex items-center justify-center">
@@ -91,7 +101,7 @@ async function submit() {
             <span class="text-highlighted">Pic</span><span class="text-primary">Host</span>
           </h1>
           <p class="text-sm text-muted">
-            {{ isMigrate ? '迁移到账号密码登录' : '首次使用，创建管理员账号' }}
+            {{ isMigrate ? t('setup.migrateTitle') : t('setup.initTitle') }}
           </p>
         </div>
       </div>
@@ -105,12 +115,12 @@ async function submit() {
             for="setup-username"
             class="block text-sm font-medium text-default"
           >
-            用户名
+            {{ t('auth.username') }}
           </label>
           <UInput
             id="setup-username"
             v-model="username"
-            placeholder="3–32 位字母、数字或下划线"
+            :placeholder="t('setup.usernamePlaceholder')"
             autocomplete="username"
             size="lg"
             class="w-full"
@@ -123,17 +133,13 @@ async function submit() {
             for="setup-password"
             class="block text-sm font-medium text-default"
           >
-            密码
+            {{ t('auth.password') }}
           </label>
-          <UInput
+          <PasswordInput
             id="setup-password"
             v-model="password"
-            type="password"
+            :placeholder="t('setup.passwordPlaceholder')"
-            placeholder="设置登录密码"
             autocomplete="new-password"
-            size="lg"
-            class="w-full"
-            :ui="{ root: 'w-full' }"
           />
           <PasswordStrength :password="password" />
         </div>
@@ -143,28 +149,24 @@ async function submit() {
             for="setup-confirm"
             class="block text-sm font-medium text-default"
           >
-            确认密码
+            {{ t('auth.confirmPassword') }}
           </label>
-          <UInput
+          <PasswordInput
             id="setup-confirm"
             v-model="confirmPassword"
-            type="password"
+            :placeholder="t('setup.confirmPlaceholder')"
-            placeholder="再次输入密码"
             autocomplete="new-password"
-            size="lg"
-            class="w-full"
-            :ui="{ root: 'w-full' }"
           />
         </div>
 
         <label class="flex cursor-pointer items-center gap-2 text-sm text-default">
           <UCheckbox v-model="allowRegistration" />
-          允许其他用户注册
+          {{ t('setup.allowRegistration') }}
         </label>
 
         <UButton
           type="submit"
-          :label="isMigrate ? '完成迁移' : '创建并进入'"
+          :label="isMigrate ? t('setup.migrateSubmit') : t('setup.initSubmit')"
           icon="i-lucide-user-plus"
           size="lg"
           block

app/pages/stats.vue

@@ -35,7 +35,9 @@ const {
   activeSearch,
   listSummary,
   refreshList,
-  initializeList,
+  fetchList,
+  fetchSearch,
+  fetchTotal,
   setActiveFolder,
   submitSearch,
   goToPage,
@@ -45,9 +47,11 @@ const {
 const { formatFileSize } = useFileSize()
 const { isChecking, isAuthenticated, checkSession, handleAuthError, fetchStatus, isAdmin } = useAuth()
 const toast = useToast()
+const { t } = useI18n()
 
 const stats = ref<StatsResponse | null>(null)
 const statsLoading = ref(false)
+const pageRefreshing = computed(() => statsLoading.value || galleryLoading.value)
 
 const selectedKeys = ref<Set<string>>(new Set())
 const deletingKeys = ref<Set<string>>(new Set())
@@ -59,7 +63,7 @@ const currentFolder = ref('all')
 const folderOptions = ref<string[]>(['images'])
 
 const folderSelectItems = computed(() => [
-  { label: '全部', value: 'all' },
+  { label: t('stats.allFolders'), value: 'all' },
   ...folderOptions.value.map(folder => ({ label: folder, value: folder }))
 ])
 
@@ -104,16 +108,16 @@ const uploadChartTotal = computed(() =>
 const statCards = computed(() => {
   const s = stats.value
   const base = [
-    { label: '今日上传', value: s?.uploadToday ?? '—' },
+    { label: t('stats.uploadToday'), value: s?.uploadToday ?? '—' },
-    { label: '本月上传', value: s?.uploadMonth ?? '—' },
+    { label: t('stats.uploadMonth'), value: s?.uploadMonth ?? '—' },
-    { label: '累计上传', value: s?.uploadTotal ?? '—' },
+    { label: t('stats.uploadTotal'), value: s?.uploadTotal ?? '—' },
-    { label: '当前库存', value: s?.storedCount ?? '—' },
+    { label: t('stats.storedCount'), value: s?.storedCount ?? '—' },
-    { label: '今日删除', value: s?.deleteToday ?? '—' },
+    { label: t('stats.deleteToday'), value: s?.deleteToday ?? '—' },
-    { label: '本月删除', value: s?.deleteMonth ?? '—' },
+    { label: t('stats.deleteMonth'), value: s?.deleteMonth ?? '—' },
     isAdmin.value
-      ? { label: '注册用户数量', value: s?.userCount ?? '—' }
+      ? { label: t('stats.userCount'), value: s?.userCount ?? '—' }
-      : { label: '累计删除', value: s?.deleteTotal ?? '—' },
+      : { label: t('stats.deleteTotal'), value: s?.deleteTotal ?? '—' },
-    { label: '累计上传体积', value: s ? formatFileSize(s.uploadBytesTotal) : '—' }
+    { label: t('stats.uploadBytes'), value: s ? formatFileSize(s.uploadBytesTotal) : '—' }
   ]
   return base
 })
@@ -150,7 +154,7 @@ async function refreshStats() {
   } catch (error: unknown) {
     handleAuthError(error)
     if (isAuthenticated.value) {
-      toast.add({ title: '加载统计失败', color: 'error' })
+      toast.add({ title: t('stats.loadFailed'), color: 'error' })
     }
   } finally {
     statsLoading.value = false
@@ -167,13 +171,33 @@ async function refreshGallery() {
   }
 }
 
+async function reloadGallery() {
+  if (activeSearch.value) {
+    await fetchSearch(galleryPage.value)
+  } else {
+    await fetchList(galleryPage.value)
+  }
+  await fetchTotal()
+}
+
 async function refreshAll() {
   if (!isAuthenticated.value) return
-  currentFolder.value = 'all'
+  selectedKeys.value = new Set()
+  statsLoading.value = true
+  try {
     await Promise.all([
-    refreshStats(),
+      fetchStats(),
-    initializeList('all').then(() => loadFolders())
+      reloadGallery(),
+      loadFolders()
     ])
+  } catch (error: unknown) {
+    handleAuthError(error)
+    if (isAuthenticated.value) {
+      toast.add({ title: t('stats.loadFailed'), color: 'error' })
+    }
+  } finally {
+    statsLoading.value = false
+  }
 }
 
 async function handleFolderChange(folder: string) {
@@ -212,7 +236,7 @@ function requestDelete(key: string) {
 function requestBatchDelete() {
   if (!isAuthenticated.value) return
   if (!selectedCount.value) {
-    toast.add({ title: '请先选择图片', color: 'warning' })
+    toast.add({ title: t('stats.selectFirst'), color: 'warning' })
     return
   }
   deleteTargetKeys.value = Array.from(selectedKeys.value)
@@ -249,7 +273,7 @@ async function confirmDelete() {
       }
       selectedKeys.value = new Set(selectedKeys.value)
       toast.add({
-        title: `已删除 ${deleted.length} 张图片`,
+        title: t('stats.deleted', { n: deleted.length }),
         color: 'success'
       })
       await refreshStats()
@@ -257,7 +281,7 @@ async function confirmDelete() {
 
     if (failed.length) {
       toast.add({
-        title: `${failed.length} 张图片删除失败`,
+        title: t('stats.deletePartialFail', { n: failed.length }),
         color: 'error'
       })
     }
@@ -267,7 +291,7 @@ async function confirmDelete() {
   } catch (error: unknown) {
     handleAuthError(error)
     if (isAuthenticated.value) {
-      toast.add({ title: '删除失败', color: 'error' })
+      toast.add({ title: t('stats.deleteFailed'), color: 'error' })
     }
   } finally {
     batchDeleting.value = false
@@ -322,7 +346,7 @@ watch(isAuthenticated, async (authed, prev) => {
           class="size-8 animate-spin"
         />
         <p class="text-sm">
-          正在验证登录状态…
+          {{ t('common.loadingSession') }}
         </p>
       </div>
     </div>
@@ -330,21 +354,24 @@ watch(isAuthenticated, async (authed, prev) => {
     <AdminLoginGate v-else-if="!isAuthenticated" />
 
     <AppShell v-else>
-      <div class="flex flex-col gap-4 sm:flex-row sm:items-center sm:justify-between">
+      <div class="flex items-start justify-between gap-3">
-        <div>
+        <div class="min-w-0">
           <h1 class="text-2xl font-semibold tracking-tight">
-            统计
+            {{ t('stats.title') }}
           </h1>
           <p class="text-sm text-muted">
-            数据概览与图库记录
+            {{ t('stats.subtitle') }}
           </p>
         </div>
 
         <UButton
           icon="i-lucide-refresh-cw"
-          label="刷新"
+          variant="ghost"
-          variant="outline"
+          color="neutral"
-          :loading="statsLoading || galleryLoading"
+          size="sm"
+          class="mt-0.5 shrink-0"
+          :aria-label="t('common.refresh')"
+          :loading="pageRefreshing"
           @click="refreshAll"
         />
       </div>
@@ -367,13 +394,13 @@ watch(isAuthenticated, async (authed, prev) => {
       <section class="grid gap-4 lg:grid-cols-2">
         <div class="rounded-xl border border-default bg-elevated p-4">
           <h2 class="mb-3 text-sm font-medium text-muted">
-            上传目录分布
+            {{ t('stats.folderDistribution') }}
           </h2>
           <div
             v-if="!uploadChartTotal"
             class="py-6 text-center text-xs text-muted"
           >
-            暂无数据
+            {{ t('stats.noData') }}
           </div>
           <StatsDonut
             v-else
@@ -384,13 +411,13 @@ watch(isAuthenticated, async (authed, prev) => {
 
         <div class="rounded-xl border border-default bg-elevated p-4">
           <h2 class="mb-3 text-sm font-medium text-muted">
-            目录占用
+            {{ t('stats.folderUsage') }}
           </h2>
           <div
             v-if="!folderStats.length"
             class="py-6 text-center text-xs text-muted"
           >
-            暂无数据
+            {{ t('stats.noData') }}
           </div>
           <ul
             v-else
@@ -403,7 +430,7 @@ watch(isAuthenticated, async (authed, prev) => {
               <div class="mb-1 flex items-center justify-between gap-2 text-xs">
                 <span class="font-medium">{{ item.folder }}</span>
                 <span class="tabular-nums text-muted">
-                  {{ item.count }} 张 · {{ formatFileSize(item.bytes) }}
+                  {{ t('stats.folderCount', { count: item.count, size: formatFileSize(item.bytes) }) }}
                 </span>
               </div>
               <div class="h-1.5 overflow-hidden rounded-full bg-muted/50">
@@ -418,86 +445,85 @@ watch(isAuthenticated, async (authed, prev) => {
       </section>
 
       <section class="space-y-4">
-        <form
+        <div class="flex flex-wrap items-center justify-between gap-x-4 gap-y-3">
-          class="flex flex-col gap-3 sm:flex-row sm:items-center sm:justify-between"
+          <div class="min-w-0">
-          @submit.prevent="handleSearch"
-        >
-          <div class="min-w-0 shrink-0">
             <h2 class="text-lg font-medium">
-              图库记录
+              {{ t('stats.gallery') }}
             </h2>
             <p
               v-if="!galleryLoading"
-              class="text-sm text-muted"
+              class="mt-0.5 text-sm text-muted"
             >
               {{ listSummary }}
             </p>
           </div>
 
-          <div class="flex flex-wrap items-center justify-end gap-2">
+          <form
-            <div class="flex items-center gap-1.5">
+            class="flex flex-wrap items-center justify-end gap-2"
-              <span class="text-xs text-muted shrink-0">目录</span>
+            @submit.prevent="handleSearch"
-              <USelect
+          >
-                v-model="currentFolder"
-                :items="folderSelectItems"
-                class="w-28"
-                @update:model-value="handleFolderChange"
-              />
-            </div>
-
-            <UInput
-              v-model="searchQuery"
-              icon="i-lucide-search"
-              placeholder="搜索文件名"
-              class="w-40 sm:w-48"
-              size="sm"
-              :disabled="galleryLoading"
-            />
-
-            <UButton
-              type="submit"
-              label="搜索"
-              size="sm"
-              :loading="galleryLoading"
-            />
-            <UButton
-              v-if="activeSearch"
-              type="button"
-              label="清除"
-              size="sm"
-              variant="ghost"
-              color="neutral"
-              @click="clearSearch"
-            />
-
-            <UButton
-              type="button"
-              icon="i-lucide-refresh-cw"
-              label="刷新"
-              variant="outline"
-              size="sm"
-              :loading="galleryLoading"
-              @click="refreshGallery"
-            />
             <UBadge
               v-if="selectedCount"
               color="primary"
               variant="subtle"
+              class="shrink-0"
             >
-              已选 {{ selectedCount }}
+              {{ t('stats.selected', { n: selectedCount }) }}
             </UBadge>
+            <USelect
+              v-model="currentFolder"
+              :items="folderSelectItems"
+              class="w-[5.5rem] shrink-0 sm:w-32"
+              size="sm"
+              :aria-label="t('stats.folder')"
+              @update:model-value="handleFolderChange"
+            />
+            <UInput
+              v-model="searchQuery"
+              icon="i-lucide-search"
+              :placeholder="t('stats.searchPlaceholder')"
+              class="w-36 shrink-0 sm:w-44"
+              size="sm"
+              :disabled="galleryLoading"
+            />
+            <UButton
+              type="submit"
+              icon="i-lucide-search"
+              size="sm"
+              class="shrink-0"
+              :aria-label="t('common.search')"
+              :loading="galleryLoading"
+            >
+              <span class="hidden sm:inline">{{ t('common.search') }}</span>
+            </UButton>
+            <UButton
+              v-if="activeSearch"
+              type="button"
+              icon="i-lucide-x"
+              size="sm"
+              variant="ghost"
+              color="neutral"
+              class="shrink-0"
+              :aria-label="t('stats.clear')"
+              @click="clearSearch"
+            >
+              <span class="hidden sm:inline">{{ t('stats.clear') }}</span>
+            </UButton>
             <UButton
               type="button"
               icon="i-lucide-trash-2"
-              label="批量删除"
               color="error"
               variant="soft"
               size="sm"
+              class="shrink-0"
+              :aria-label="t('stats.batchDelete')"
               :disabled="!selectedCount"
               @click="requestBatchDelete"
-            />
+            >
-          </div>
+              <span class="hidden sm:inline">{{ t('stats.batchDelete') }}</span>
+            </UButton>
           </form>
+        </div>
 
         <div
           v-if="galleryLoading"
@@ -512,6 +538,7 @@ watch(isAuthenticated, async (authed, prev) => {
 
         <ImageGrid
           v-else
+          :show-key="false"
           :items="items"
           :selected-keys="selectedKeys"
           :deleting-keys="deletingKeys"
@@ -524,7 +551,7 @@ watch(isAuthenticated, async (authed, prev) => {
           :page="galleryPage"
           :total-pages="galleryTotalPages"
           :total="galleryTotal"
-          unit="张"
+          :unit="t('common.imagesUnit')"
           :loading="galleryLoading"
           @update:page="handleGalleryPageChange"
         />
@@ -540,7 +567,7 @@ watch(isAuthenticated, async (authed, prev) => {
       <UButton
         v-show="showScrollTop"
         icon="i-lucide-arrow-up"
-        aria-label="回到顶部"
+        :aria-label="t('stats.scrollTop')"
         color="primary"
         class="fixed bottom-6 right-6 z-50 shadow-lg"
         size="lg"

app/pages/storage.vue

@@ -0,0 +1,349 @@
+<script setup lang="ts">
+import type { StorageFormPayload } from '~/components/storage/StorageBackendForm.vue'
+import type { StorageBackendItem, StorageListResponse } from '~/types/storage'
+
+const { isChecking, isAuthenticated, checkSession, handleAuthError, fetchStatus, isAdmin } = useAuth()
+const toast = useToast()
+const { t } = useI18n()
+
+const loading = ref(true)
+const busyId = ref<string | null>(null)
+const storageData = ref<StorageListResponse | null>(null)
+
+const formOpen = ref(false)
+const formMode = ref<'create' | 'edit'>('create')
+const editingBackend = ref<StorageBackendItem | null>(null)
+const formInstanceKey = ref('create')
+const savingForm = ref(false)
+
+const deleteOpen = ref(false)
+const deleteTarget = ref<StorageBackendItem | null>(null)
+const deleting = ref(false)
+
+async function loadStorage() {
+  loading.value = true
+  try {
+    storageData.value = await $fetch<StorageListResponse>('/api/admin/storage', {
+      credentials: 'include'
+    })
+  } catch (error: unknown) {
+    handleAuthError(error)
+    if (isAuthenticated.value) {
+      toast.add({ title: t('storage.loadFailed'), color: 'error' })
+    }
+  } finally {
+    loading.value = false
+  }
+}
+
+const { quotaToBytes } = useFileSize()
+
+function buildPatchBody(payload: StorageFormPayload) {
+  const quotaBytes = quotaToBytes(payload.quotaValue, payload.quotaUnit)
+  const body: Record<string, unknown> = {
+    name: payload.name,
+    servingMode: payload.servingMode,
+    publicUrl: payload.publicUrl,
+    quotaBytes,
+    config: payload.config
+  }
+  if (payload.secrets.accessKeyId || payload.secrets.secretAccessKey) {
+    body.secrets = payload.secrets
+  }
+  return body
+}
+
+function openCreate() {
+  formMode.value = 'create'
+  editingBackend.value = null
+  formInstanceKey.value = `create-${Date.now()}`
+  formOpen.value = true
+}
+
+function openEdit(backend: StorageBackendItem) {
+  formMode.value = 'edit'
+  editingBackend.value = backend
+  formInstanceKey.value = backend.id
+  formOpen.value = true
+}
+
+async function onFormSubmit(payload: StorageFormPayload) {
+  if (!quotaToBytes(payload.quotaValue, payload.quotaUnit)) {
+    toast.add({ title: t('storage.quotaRequired'), color: 'warning' })
+    return
+  }
+
+  if (formMode.value === 'create') {
+    if (!payload.secrets.accessKeyId || !payload.secrets.secretAccessKey) {
+      toast.add({ title: t('storage.secretsRequired'), color: 'warning' })
+      return
+    }
+  }
+
+  savingForm.value = true
+  try {
+    const body = buildPatchBody(payload)
+    if (formMode.value === 'create') {
+      await $fetch('/api/admin/storage', {
+        method: 'POST',
+        credentials: 'include',
+        body
+      })
+      toast.add({ title: t('storage.created'), color: 'success' })
+    } else if (editingBackend.value) {
+      await $fetch(`/api/admin/storage/${editingBackend.value.id}`, {
+        method: 'PATCH',
+        credentials: 'include',
+        body
+      })
+      toast.add({ title: t('storage.saved'), color: 'success' })
+    }
+    formOpen.value = false
+    await loadStorage()
+  } catch {
+    toast.add({ title: t('storage.saveFailed'), color: 'error' })
+  } finally {
+    savingForm.value = false
+  }
+}
+
+async function setDefault(backend: StorageBackendItem) {
+  busyId.value = backend.id
+  try {
+    await $fetch(`/api/admin/storage/${backend.id}`, {
+      method: 'PATCH',
+      credentials: 'include',
+      body: { isDefault: true, enabled: true }
+    })
+    toast.add({ title: t('storage.defaultUpdated'), color: 'success' })
+    await loadStorage()
+  } catch {
+    toast.add({ title: t('storage.saveFailed'), color: 'error' })
+  } finally {
+    busyId.value = null
+  }
+}
+
+async function testBackend(backend: StorageBackendItem) {
+  busyId.value = backend.id
+  try {
+    const result = await $fetch<{ ok: boolean, message: string }>(
+      `/api/admin/storage/${backend.id}/test`,
+      { method: 'POST', credentials: 'include' }
+    )
+    toast.add({
+      title: result.ok ? t('storage.testSuccess') : t('storage.testFailed'),
+      description: result.message,
+      color: result.ok ? 'success' : 'error'
+    })
+  } catch {
+    toast.add({ title: t('storage.testFailed'), color: 'error' })
+  } finally {
+    busyId.value = null
+  }
+}
+
+async function toggleEnabled(backend: StorageBackendItem) {
+  busyId.value = backend.id
+  try {
+    await $fetch(`/api/admin/storage/${backend.id}`, {
+      method: 'PATCH',
+      credentials: 'include',
+      body: { enabled: !backend.enabled }
+    })
+    await loadStorage()
+  } catch {
+    toast.add({ title: t('storage.saveFailed'), color: 'error' })
+  } finally {
+    busyId.value = null
+  }
+}
+
+function confirmDelete(backend: StorageBackendItem) {
+  if (backend.usage.count > 0) {
+    toast.add({ title: t('storage.deleteBlockedImages'), color: 'warning' })
+    return
+  }
+  deleteTarget.value = backend
+  deleteOpen.value = true
+}
+
+async function executeDelete() {
+  if (!deleteTarget.value) return
+  deleting.value = true
+  try {
+    await $fetch(`/api/admin/storage/${deleteTarget.value.id}`, {
+      method: 'DELETE',
+      credentials: 'include'
+    })
+    toast.add({ title: t('storage.deleted'), color: 'success' })
+    deleteOpen.value = false
+    deleteTarget.value = null
+    await loadStorage()
+  } catch (error: unknown) {
+    const message = typeof error === 'object' && error !== null && 'data' in error
+      ? String((error as { data?: { message?: string } }).data?.message ?? '')
+      : ''
+    toast.add({
+      title: message || t('storage.deleteFailed'),
+      color: 'error'
+    })
+  } finally {
+    deleting.value = false
+  }
+}
+
+onMounted(async () => {
+  const status = await fetchStatus()
+  if (!status.initialized && !status.legacyMode) {
+    await navigateTo('/setup')
+    return
+  }
+  await checkSession()
+  if (!isAuthenticated.value || !isAdmin.value) {
+    await navigateTo('/')
+    return
+  }
+  await loadStorage()
+})
+
+watch(isAuthenticated, async (authed) => {
+  if (authed && isAdmin.value) {
+    await loadStorage()
+  }
+})
+</script>
+
+<template>
+  <div class="min-h-screen">
+    <div
+      v-if="isChecking"
+      class="flex min-h-screen items-center justify-center"
+    >
+      <UIcon
+        name="i-lucide-loader-circle"
+        class="size-8 animate-spin text-muted"
+      />
+    </div>
+
+    <AdminLoginGate v-else-if="!isAuthenticated" />
+
+    <AppShell v-else-if="isAdmin">
+      <section class="overflow-hidden rounded-2xl border border-default bg-elevated shadow-sm">
+        <div class="flex flex-wrap items-start justify-between gap-3 border-b border-default px-5 py-4 sm:px-6">
+          <div class="flex items-start gap-2">
+            <UIcon
+              name="i-lucide-hard-drive"
+              class="mt-0.5 size-5 shrink-0 text-primary"
+            />
+            <div>
+              <h1 class="text-base font-semibold">
+                {{ t('storage.pageTitle') }}
+              </h1>
+              <p class="mt-0.5 text-xs text-muted">
+                {{ t('storage.pageSubtitle') }}
+              </p>
+            </div>
+          </div>
+          <UButton
+            :label="t('storage.addBackend')"
+            icon="i-lucide-plus"
+            size="sm"
+            :disabled="storageData?.envOverride"
+            @click="openCreate"
+          />
+        </div>
+
+        <div class="p-5 sm:p-6">
+          <UAlert
+            v-if="storageData?.envOverride"
+            color="warning"
+            variant="subtle"
+            class="mb-5"
+            :title="t('storage.envOverride')"
+            icon="i-lucide-triangle-alert"
+          />
+
+          <p class="mb-5 text-xs text-muted">
+            {{ t('storage.switchHint') }}
+          </p>
+
+          <div
+            v-if="loading"
+            class="flex justify-center py-16"
+          >
+            <UIcon
+              name="i-lucide-loader-circle"
+              class="size-6 animate-spin text-muted"
+            />
+          </div>
+
+          <div
+            v-else-if="storageData"
+            class="grid grid-cols-1 gap-4 md:grid-cols-2 xl:grid-cols-3"
+          >
+            <StorageBackendCard
+              v-for="backend in storageData.backends"
+              :key="backend.id"
+              :backend="backend"
+              :env-override="storageData.envOverride"
+              :busy="busyId === backend.id"
+              @set-default="setDefault(backend)"
+              @edit="openEdit(backend)"
+              @test="testBackend(backend)"
+              @toggle-enabled="toggleEnabled(backend)"
+              @delete="confirmDelete(backend)"
+            />
+          </div>
+        </div>
+      </section>
+    </AppShell>
+
+    <UModal v-model:open="formOpen">
+      <template #content>
+        <div class="p-5 sm:p-6">
+          <h2 class="mb-4 text-base font-semibold">
+            {{ formMode === 'create' ? t('storage.addBackend') : t('storage.editBackend') }}
+          </h2>
+          <div class="max-h-[75vh] overflow-y-auto pr-1">
+            <StorageBackendForm
+              :key="formInstanceKey"
+              :backend="editingBackend"
+              :create-mode="formMode === 'create'"
+              :saving="savingForm"
+              @submit="onFormSubmit"
+              @cancel="formOpen = false"
+            />
+          </div>
+        </div>
+      </template>
+    </UModal>
+
+    <UModal v-model:open="deleteOpen">
+      <template #content>
+        <div class="p-5 sm:p-6">
+          <h2 class="text-base font-semibold">
+            {{ t('storage.deleteConfirmTitle') }}
+          </h2>
+          <p class="mt-2 text-sm text-muted">
+            {{ t('storage.deleteConfirmBody', { name: deleteTarget?.name ?? '' }) }}
+          </p>
+          <div class="mt-5 flex justify-end gap-2">
+            <UButton
+              :label="t('common.cancel')"
+              variant="outline"
+              color="neutral"
+              @click="() => { deleteOpen = false }"
+            />
+            <UButton
+              :label="t('common.delete')"
+              color="error"
+              :loading="deleting"
+              @click="executeDelete"
+            />
+          </div>
+        </div>
+      </template>
+    </UModal>
+  </div>
+</template>

app/types/storage.ts

@@ -0,0 +1,39 @@
+export type ServingMode = 'proxy' | 'public'
+
+export interface StorageCapacity {
+  totalBytes: number | null
+  usedBytes: number
+  freeBytes: number | null
+  percent: number | null
+  source: 'disk' | 'quota'
+}
+
+export interface StorageBackendItem {
+  id: string
+  name: string
+  type: 'local' | 's3'
+  config: {
+    endpoint?: string
+    region?: string
+    bucket?: string
+    prefix?: string
+    forcePathStyle?: boolean
+  }
+  secretsMasked: {
+    accessKeyId?: string
+    secretAccessKey?: string
+  }
+  servingMode: ServingMode
+  publicUrl: string
+  quotaBytes: number | null
+  enabled: boolean
+  isDefault: boolean
+  usage: { count: number, bytes: number }
+  capacity: StorageCapacity
+}
+
+export interface StorageListResponse {
+  backends: StorageBackendItem[]
+  activeBackendId: string
+  envOverride: boolean
+}

app/utils/password-strength.ts

@@ -7,7 +7,7 @@ export interface PasswordCriteria {
   hasSpecial: boolean
 }
 
-export type PasswordStrengthLabel = '弱' | '中' | '强'
+export type PasswordStrengthLabel = 'weak' | 'medium' | 'strong'
 
 export function analyzePassword(password: string): {
   criteria: PasswordCriteria
@@ -24,7 +24,7 @@ export function analyzePassword(password: string): {
 
   const score = Object.values(criteria).filter(Boolean).length
   const label: PasswordStrengthLabel
-    = score <= 1 ? '弱' : score <= 3 ? '中' : '强'
+    = score <= 1 ? 'weak' : score <= 3 ? 'medium' : 'strong'
 
   return {
     criteria,

docker-compose.yml

@@ -4,8 +4,6 @@ services:
     # 飞牛 Docker 对 Docker Hub 的「更新镜像」支持更好
     image: muxui/pichost:latest
     pull_policy: always
-    # 备用：GitHub Container Registry
-    # image: ghcr.io/O96u/pichost:latest
     container_name: pichost
     restart: unless-stopped
     ports:

docker-entrypoint.sh

@@ -0,0 +1,8 @@
+#!/bin/sh
+set -e
+
+if [ "$1" = "reset-password" ]; then
+  exec node /app/server/cli/reset-password.mjs
+fi
+
+exec node /app/.output/server/index.mjs "$@"

docs/README.md

@@ -0,0 +1,53 @@
+# PicHost 文档资源
+
+本目录主要存放 README 引用的界面截图与分支说明。
+
+## 分支
+
+| 分支 | 说明 |
+| ---- | ---- |
+| [**main**](https://github.com/O96u/PicHost/tree/main)（默认） | **v1.1.0** 主线：本地磁盘 + 多对象存储（R2 / COS / OSS / AWS）、`/storage` 管理页、混合直链 |
+| [**cloudflare**](https://github.com/O96u/PicHost/tree/cloudflare) | **Cloudflare R2 专用线**：面向「只用 R2」的部署场景，配置更聚焦 R2 |
+
+- 需要多种云存储或完整管理界面 → 使用 **main**
+- 图床只接 **Cloudflare R2** → 可选用 **`cloudflare`** 分支
+
+## 截图一览
+
+以下为 **main（v1.1.0）** 界面截图。
+
+| 文件 | 说明 |
+| ---- | ---- |
+| `screenshots/upload.png` | 首页上传区（顶栏含 API / 统计 / 存储 / 设置） |
+| `screenshots/storage.png` | 存储管理（`/storage`）：多后端卡片、用量、设默认 |
+| `screenshots/stats.png` | 统计与图库 |
+| `screenshots/settings.png` | 系统设置（上传偏好 + 系统设置） |
+| `screenshots/preferences.png` | 首页上传卡片翻转后的上传偏好 |
+| `screenshots/login.png` | 登录页 |
+
+## 相关页面路由（main / v1.1.0）
+
+| 路由 | 权限 | 说明 |
+| ---- | ---- | ---- |
+| `/` | 登录用户 | 上传与图库入口 |
+| `/storage` | 管理员 | 存储后端管理 |
+| `/settings` | 管理员 | 系统设置 |
+| `/stats` | 登录用户 | 统计 |
+| `/api` | 登录用户 | API 文档与 Token |
+
+管理员顶栏：**API** · **统计** · **存储** · **设置**。用户下拉菜单仅 **修改密码**、**退出登录**。
+
+## Cloudflare R2 配置对照
+
+**main**：后台 **存储 → 添加存储 → Cloudflare R2** 预设。
+
+**cloudflare 分支**（R2 专用）：通常以环境变量为主：
+
+| 配置项 | 值 |
+| ------ | -- |
+| `STORAGE_BACKEND` | `s3` |
+| `S3_ENDPOINT` | `https://<account_id>.r2.cloudflarestorage.com` |
+| `S3_REGION` | `auto` |
+| `S3_BUCKET` | 桶名 |
+| `S3_ACCESS_KEY` / `S3_SECRET_KEY` | R2 API Token |
+| 直链 | 默认 PicHost 代理；桶绑域名后可改公开 URL |

i18n/locales/en.json

@@ -0,0 +1,388 @@
+{
+  "app": {
+    "title": "PicHost - Image Hosting",
+    "description": "A lightweight self-hosted image hosting system",
+    "tagline": "Personal lightweight image host"
+  },
+  "common": {
+    "loadingSession": "Verifying session…",
+    "save": "Save",
+    "cancel": "Cancel",
+    "copy": "Copy",
+    "delete": "Delete",
+    "edit": "Edit",
+    "search": "Search",
+    "refresh": "Refresh",
+    "back": "Back",
+    "all": "All",
+    "notConfigured": "(not configured)",
+    "countImages": "{count} images",
+    "itemsUnit": "items",
+    "imagesUnit": "images",
+    "more": "More"
+  },
+  "nav": {
+    "api": "API",
+    "stats": "Stats",
+    "settings": "Settings",
+    "storage": "Storage",
+    "menu": "Menu",
+    "language": "Language",
+    "appearance": "Appearance",
+    "account": "Account",
+    "backToUpload": "Back to upload",
+    "changePassword": "Change password",
+    "systemSettings": "System settings",
+    "logout": "Log out"
+  },
+  "theme": {
+    "switch": "Switch theme",
+    "light": "Light",
+    "dark": "Dark",
+    "system": "System"
+  },
+  "locale": {
+    "switch": "Switch language",
+    "zh-CN": "简体中文",
+    "en": "English"
+  },
+  "auth": {
+    "username": "Username",
+    "password": "Password",
+    "confirmPassword": "Confirm password",
+    "login": "Log in",
+    "register": "Register",
+    "adminSecret": "Admin secret",
+    "adminSecretPlaceholder": "Enter ADMIN_SECRET",
+    "legacyHint": "Legacy deployment: sign in with the secret to migrate to username/password",
+    "noAccount": "No account?",
+    "hasAccount": "Already have an account?",
+    "backToLogin": "Back to login",
+    "loginFooter": "Upload and management require sign-in",
+    "loginSuccess": "Signed in",
+    "loginFailedSecret": "Sign-in failed. Check your secret",
+    "loginFailedCredentials": "Invalid username or password",
+    "loginFailed": "Sign-in failed. Check username and password",
+    "registerFailed": "Registration failed. Check your input",
+    "setupFailed": "Setup failed. Check your input",
+    "migrateFailed": "Migration failed. Check your input",
+    "passwordMismatch": "Passwords do not match",
+    "showPassword": "Show password",
+    "hidePassword": "Hide password",
+    "registerSuccess": "Registered successfully",
+    "errors": {
+      "invalidUsername": "Username must be 3–32 letters, numbers, or underscores",
+      "invalidPassword": "Password must be at least 8 characters"
+    }
+  },
+  "setup": {
+    "migrateTitle": "Migrate to username/password",
+    "initTitle": "First run — create admin account",
+    "usernamePlaceholder": "3–32 letters, numbers, or underscores",
+    "passwordPlaceholder": "Set login password",
+    "confirmPlaceholder": "Enter password again",
+    "allowRegistration": "Allow user registration",
+    "migrateSubmit": "Complete migration",
+    "initSubmit": "Create and continue",
+    "migrateSuccess": "Migration complete",
+    "initSuccess": "Setup complete"
+  },
+  "register": {
+    "title": "Register",
+    "subtitle": "Create a PicHost user account"
+  },
+  "password": {
+    "title": "Change password",
+    "subtitle": "Update your login password",
+    "current": "Current password",
+    "new": "New password",
+    "confirmNew": "Confirm new password",
+    "newPlaceholder": "Set new password",
+    "changed": "Password updated",
+    "tooShort": "New password must be at least 8 characters",
+    "changeFailed": "Failed to change password",
+    "strength": "Password strength",
+    "weak": "Weak",
+    "medium": "Medium",
+    "strong": "Strong",
+    "ruleMinLength": "At least {n} characters",
+    "ruleMixedCase": "Upper and lower case letters",
+    "ruleNumber": "Contains a number",
+    "ruleSpecial": "Contains a special character"
+  },
+  "upload": {
+    "title": "Drop images here to upload",
+    "hint": "Or click to select files, press {ctrl} + {v} to paste",
+    "formats": "JPEG / PNG / WebP / GIF / SVG / ICO, max 10 MB each, up to 10 files per batch",
+    "selectFiles": "Select images",
+    "settings": "Upload settings",
+    "progress": "Upload progress",
+    "statusPending": "Pending",
+    "statusUploading": "Uploading",
+    "statusSuccess": "Done",
+    "statusError": "Failed",
+    "selectImages": "Select images to upload",
+    "maxFiles": "Up to {n} images per upload",
+    "uploadSuccess": "Uploaded {n} image(s)",
+    "uploadPartialFail": "{n} image(s) failed to upload",
+    "uploadFailed": "Upload failed",
+    "loginRequired": "Please sign in first",
+    "sessionTitle": "This session",
+    "sessionEmpty": "No uploads in this session"
+  },
+  "copy": {
+    "url": "URL",
+    "markdown": "Markdown",
+    "html": "HTML",
+    "copied": "Copied to clipboard",
+    "copiedLabel": "Copied {label}",
+    "copiedUrl": "URL copied",
+    "copiedMarkdown": "Markdown copied",
+    "copiedHtml": "HTML copied",
+    "copiedFormat": "Copied {format}",
+    "failed": "Copy failed",
+    "failedManual": "Copy failed — select the link manually",
+    "curl": "cURL example copied"
+  },
+  "preferences": {
+    "title": "Upload preferences",
+    "subtitle": "Browser-local and account settings for your uploads only",
+    "back": "Back to upload",
+    "processing": "Image processing",
+    "clientCompress": "Client-side compression",
+    "clientCompressHint": "Compress in the browser before upload (server still converts to WebP)",
+    "autoDeletePrefix": "Auto-delete after",
+    "autoDeleteSuffix": "days",
+    "autoDeleteHint": "Only affects images uploaded after enabling; existing images are kept",
+    "webpQuality": "WebP quality",
+    "webpQualityHint": "Client compression quality (1–100); requires client-side compression",
+    "current": "Current: {n}",
+    "qualityHigh": "High quality",
+    "qualityMedium": "Medium quality",
+    "qualityLow": "Lossy",
+    "convenience": "Convenience",
+    "autoCopy": "Copy link after upload",
+    "autoCopyHint": "Copy to clipboard in the selected format"
+  },
+  "settings": {
+    "title": "System settings",
+    "subtitle": "Saved to database; environment variables take precedence",
+    "uploadAccount": "Upload & accounts",
+    "defaultFolder": "Default upload folder",
+    "defaultFolderHint": "Stored in this browser only; affects your upload target",
+    "allowRegistration": "Open registration",
+    "allowRegistrationHint": "Allow new users to register (regular users see only their images)",
+    "accessControl": "Access control",
+    "refererHint": "Referer hotlink protection; comma-separated hostnames, empty = no restriction",
+    "refererPlaceholder": "example.com, www.example.com",
+    "linkGeneration": "Link generation",
+    "imageBaseUrlHint": "Public URL prefix for generated links; use your public domain behind a reverse proxy",
+    "imageBaseUrlPlaceholder": "https://pic.example.com",
+    "imageBaseUrlActive": "Active: {url}",
+    "badgeEnv": ".env",
+    "badgeSaved": "Saved",
+    "badgeDefault": "Default",
+    "badgeUnset": "Not set",
+    "tokenEnv": "Environment",
+    "tokenDb": "Generated in app",
+    "tokenNone": "Not configured",
+    "apiTokenLine": "API Token · {source} · v{version}",
+    "unsavedChanges": "Unsaved changes",
+    "manageToken": "Manage token",
+    "envOverride": "Overridden by environment variable; cannot edit in UI",
+    "saved": "Settings saved",
+    "saveFailed": "Failed to save settings",
+    "loadFailed": "Failed to load settings"
+  },
+  "storage": {
+    "title": "Storage",
+    "subtitle": "New uploads go to the active backend; existing images keep their backend",
+    "activeBackend": "Active backend",
+    "backendLocal": "Local disk",
+    "backendCloud": "Cloud storage",
+    "backendS3": "Cloud storage",
+    "switchHint": "Switching only affects new uploads",
+    "provider": "Preset",
+    "providerR2": "Cloudflare R2",
+    "providerCos": "Tencent COS",
+    "providerOss": "Alibaba OSS",
+    "providerAws": "AWS S3",
+    "providerCustom": "Custom",
+    "endpoint": "Endpoint",
+    "region": "Region",
+    "bucket": "Bucket",
+    "prefix": "Key prefix (optional)",
+    "prefixPlaceholder": "e.g. pichost",
+    "forcePathStyle": "Force path-style access",
+    "accessKey": "Access Key",
+    "secretKey": "Secret Key",
+    "servingMode": "Serving mode",
+    "servingProxy": "Proxy (same origin)",
+    "servingPublic": "Public URL (302 to CDN)",
+    "servingHint": "In public mode, configure referer protection on CDN/bucket",
+    "publicUrl": "Public base URL",
+    "publicUrlPlaceholder": "https://cdn.example.com",
+    "testConnection": "Test connection",
+    "testSuccess": "Connection successful",
+    "testFailed": "Connection failed",
+    "saved": "Storage settings saved",
+    "saveFailed": "Failed to save storage settings",
+    "loadFailed": "Failed to load storage settings",
+    "envOverride": "Storage is overridden by environment variables",
+    "pageTitle": "Storage management",
+    "pageSubtitle": "Manage backends; new uploads go to the default backend",
+    "addBackend": "Add storage",
+    "editBackend": "Edit storage",
+    "formCreateHint": "Configure cloud storage; set as default after saving to receive new uploads",
+    "formEditHint": "Update connection settings; leave keys blank to keep existing secrets",
+    "sectionBasic": "Basic",
+    "sectionConnection": "Connection",
+    "sectionCredentials": "Credentials",
+    "sectionAccess": "Access",
+    "sectionQuota": "Quota",
+    "advancedOptions": "Advanced",
+    "servingProxyShort": "Proxy",
+    "servingPublicShort": "Public",
+    "backendName": "Display name",
+    "badgeDefault": "Default",
+    "badgeDisabled": "Disabled",
+    "badgeEnabled": "Enabled",
+    "statTotal": "Total",
+    "statUsed": "Used",
+    "statFree": "Free",
+    "usageRate": "Usage",
+    "indexImages": "PicHost images {count} · {size}",
+    "setDefault": "Set as default",
+    "actionSetDefault": "Default",
+    "actionTest": "Test",
+    "disable": "Disable",
+    "enable": "Enable",
+    "usageCount": "{count} images",
+    "quotaTotal": "Plan size",
+    "quotaPlaceholder": "e.g. 10",
+    "quotaHint": "Enter your cloud plan size; used space is calculated from PicHost image index",
+    "quotaRequired": "Enter a valid plan size",
+    "notConfigured": "Not configured",
+    "created": "Storage backend added",
+    "deleted": "Storage backend deleted",
+    "deleteFailed": "Delete failed",
+    "deleteBlockedImages": "This backend still has images. Move or delete them before removing the backend.",
+    "defaultUpdated": "Default backend updated",
+    "deleteConfirmTitle": "Delete storage",
+    "deleteConfirmBody": "Delete “{name}”? This cannot be undone.",
+    "secretsRequired": "Access Key and Secret Key are required for new storage",
+    "manageStorage": "Manage object storage",
+    "manageStorageHint": "Configure R2 / S3 / COS backends and URL serving"
+  },
+  "stats": {
+    "title": "Statistics",
+    "subtitle": "Overview and gallery",
+    "uploadToday": "Uploaded today",
+    "uploadMonth": "Uploaded this month",
+    "uploadTotal": "Total uploads",
+    "storedCount": "Stored images",
+    "deleteToday": "Deleted today",
+    "deleteMonth": "Deleted this month",
+    "deleteTotal": "Total deleted",
+    "userCount": "Registered users",
+    "uploadBytes": "Total upload size",
+    "folderDistribution": "Uploads by folder",
+    "folderUsage": "Storage by folder",
+    "noData": "No data",
+    "folderCount": "{count} · {size}",
+    "gallery": "Gallery",
+    "folder": "Folder",
+    "searchPlaceholder": "Search filename",
+    "clear": "Clear",
+    "selected": "{n} selected",
+    "batchDelete": "Delete selected",
+    "scrollTop": "Back to top",
+    "loadFailed": "Failed to load statistics",
+    "selectFirst": "Select images first",
+    "deleted": "Deleted {n} image(s)",
+    "deletePartialFail": "{n} image(s) failed to delete",
+    "deleteFailed": "Delete failed",
+    "deletedSingle": "Deleted",
+    "allFolders": "All",
+    "counting": "Counting…",
+    "summarySearch": "{folder} · Search “{q}” · {total} images",
+    "summaryTotal": "{folder} · {total} images"
+  },
+  "image": {
+    "empty": "No images",
+    "previewFailed": "Preview failed",
+    "uploader": "Uploader: {name}"
+  },
+  "delete": {
+    "confirmTitle": "Confirm delete",
+    "confirmDesc": "Delete {count} selected image(s)? This cannot be undone.",
+    "confirm": "Delete"
+  },
+  "pagination": {
+    "pageOf": "Page {page} / {totalPages} · {total} {unit}",
+    "totalOnly": "{total} {unit}",
+    "first": "First page",
+    "prev": "Previous page",
+    "next": "Next page",
+    "last": "Last page"
+  },
+  "api": {
+    "tokenTitle": "API Token",
+    "envOverrideTitle": "Token overridden by environment",
+    "envOverrideDesc": "Restart after changing API_UPLOAD_TOKEN; cannot regenerate in UI.",
+    "personalTitle": "Personal API token",
+    "personalDesc": "For your scripts only; uploads belong to your account.",
+    "notConfiguredTitle": "No token configured",
+    "notConfiguredDesc": "Click Regenerate to create a token for Auth-Token on all endpoints below.",
+    "regenerate": "Regenerate",
+    "tokenSourceEnv": "Source: API_UPLOAD_TOKEN environment variable",
+    "tokenSourceDb": "Source: generated in app (can regenerate)",
+    "tokenSourceNone": "Source: not configured",
+    "tokenHeader": "Header:",
+    "tokenInvalidate": "Old token is invalidated immediately after regenerate",
+    "docsTitle": "API reference",
+    "curlExample": "cURL example",
+    "loadFailed": "Failed to load API settings",
+    "regenerateEnvBlocked": "Token is set via environment; cannot regenerate in UI",
+    "regenerateFailed": "Failed to regenerate token",
+    "confirmRegenerateTitle": "Regenerate token?",
+    "confirmRegenerateDesc": "The old token stops working immediately. Update scripts and automation before continuing.",
+    "confirmRegenerate": "Regenerate",
+    "newTokenTitle": "New token generated",
+    "newTokenDesc": "Copy and save it now. You can copy again from the field above after closing.",
+    "copyToken": "Copy token",
+    "saved": "Saved",
+    "docs": {
+      "upload": {
+        "title": "Upload images",
+        "descAdmin": "Upload one or more images. Use image field; folder creates directory if missing. Also accepts file, files, type.",
+        "descUser": "Upload one or more images via image field. Also accepts file, files. Stored under images/."
+      },
+      "list": {
+        "title": "List images",
+        "descAdmin": "Paginated gallery; optional folder filter. limit default 20, max 100.",
+        "descUser": "Paginated list of your images. limit default 20, max 100."
+      },
+      "search": {
+        "title": "Search images",
+        "desc": "Search by filename or path; q is required."
+      },
+      "delete": {
+        "title": "Delete image",
+        "desc": "Delete by key (storage path, e.g. images/2026/08/xxx.webp)."
+      },
+      "batchDelete": {
+        "title": "Batch delete",
+        "desc": "Delete multiple images; request body is a keys array."
+      },
+      "twikoo": {
+        "title": "Twikoo-compatible upload",
+        "desc": "Twikoo / EasyImage 2.0 protocol; stored under twikoo/. Fields: image + token."
+      }
+    }
+  },
+  "userSettings": {
+    "loadFailed": "Failed to load settings",
+    "saveFailed": "Failed to save settings"
+  }
+}

i18n/locales/zh-CN.json

@@ -0,0 +1,388 @@
+{
+  "app": {
+    "title": "PicHost - 个人图床",
+    "description": "个人自用的轻量图床系统",
+    "tagline": "个人轻量图床"
+  },
+  "common": {
+    "loadingSession": "正在验证登录状态…",
+    "save": "保存",
+    "cancel": "取消",
+    "copy": "复制",
+    "delete": "删除",
+    "edit": "编辑",
+    "search": "搜索",
+    "refresh": "刷新",
+    "back": "返回",
+    "all": "全部",
+    "notConfigured": "（未配置）",
+    "countImages": "{count} 张",
+    "itemsUnit": "条",
+    "imagesUnit": "张",
+    "more": "更多"
+  },
+  "nav": {
+    "api": "API",
+    "stats": "统计",
+    "settings": "设置",
+    "storage": "存储",
+    "menu": "菜单",
+    "language": "语言",
+    "appearance": "外观",
+    "account": "账户",
+    "backToUpload": "返回上传",
+    "changePassword": "修改密码",
+    "systemSettings": "系统设置",
+    "logout": "退出登录"
+  },
+  "theme": {
+    "switch": "切换主题",
+    "light": "浅色",
+    "dark": "深色",
+    "system": "跟随系统"
+  },
+  "locale": {
+    "switch": "切换语言",
+    "zh-CN": "简体中文",
+    "en": "English"
+  },
+  "auth": {
+    "username": "用户名",
+    "password": "密码",
+    "confirmPassword": "确认密码",
+    "login": "登录",
+    "register": "注册",
+    "adminSecret": "管理密钥",
+    "adminSecretPlaceholder": "输入 ADMIN_SECRET",
+    "legacyHint": "遗留部署：使用密钥登录后将引导创建账号",
+    "noAccount": "没有账号？",
+    "hasAccount": "已有账号？",
+    "backToLogin": "返回登录",
+    "loginFooter": "未登录时无法访问上传和管理功能",
+    "loginSuccess": "登录成功",
+    "loginFailedSecret": "登录失败，请检查密钥",
+    "loginFailedCredentials": "用户名或密码错误",
+    "loginFailed": "登录失败，请检查用户名和密码",
+    "registerFailed": "注册失败，请检查输入",
+    "setupFailed": "初始化失败，请检查输入",
+    "migrateFailed": "迁移失败，请检查输入",
+    "passwordMismatch": "两次输入的密码不一致",
+    "showPassword": "显示密码",
+    "hidePassword": "隐藏密码",
+    "registerSuccess": "注册成功",
+    "errors": {
+      "invalidUsername": "用户名需为 3–32 位字母、数字或下划线",
+      "invalidPassword": "密码至少 8 位"
+    }
+  },
+  "setup": {
+    "migrateTitle": "迁移到账号密码登录",
+    "initTitle": "首次使用，创建管理员账号",
+    "usernamePlaceholder": "3–32 位字母、数字或下划线",
+    "passwordPlaceholder": "设置登录密码",
+    "confirmPlaceholder": "再次输入密码",
+    "allowRegistration": "允许其他用户注册",
+    "migrateSubmit": "完成迁移",
+    "initSubmit": "创建并进入",
+    "migrateSuccess": "账号迁移完成",
+    "initSuccess": "初始化完成"
+  },
+  "register": {
+    "title": "注册账号",
+    "subtitle": "创建 PicHost 用户账号"
+  },
+  "password": {
+    "title": "修改密码",
+    "subtitle": "修改您的登录密码",
+    "current": "当前密码",
+    "new": "新密码",
+    "confirmNew": "确认新密码",
+    "newPlaceholder": "设置新密码",
+    "changed": "密码已修改",
+    "tooShort": "新密码至少 8 位",
+    "changeFailed": "修改密码失败",
+    "strength": "密码强度",
+    "weak": "弱",
+    "medium": "中",
+    "strong": "强",
+    "ruleMinLength": "至少 {n} 个字符",
+    "ruleMixedCase": "包含大小写字母",
+    "ruleNumber": "包含数字",
+    "ruleSpecial": "包含特殊字符"
+  },
+  "upload": {
+    "title": "拖拽图片到此处上传",
+    "hint": "或点击选择文件，按 {ctrl} + {v} 粘贴图片",
+    "formats": "支持 JPEG / PNG / WebP / GIF / SVG / ICO，单张最大 10 MB，每次最多 10 张",
+    "selectFiles": "选择图片",
+    "settings": "上传设置",
+    "progress": "上传进度",
+    "statusPending": "等待",
+    "statusUploading": "上传中",
+    "statusSuccess": "成功",
+    "statusError": "失败",
+    "selectImages": "请选择图片",
+    "maxFiles": "每次最多上传 {n} 张图片",
+    "uploadSuccess": "成功上传 {n} 张图片",
+    "uploadPartialFail": "{n} 张图片上传失败",
+    "uploadFailed": "上传失败",
+    "loginRequired": "请先登录",
+    "sessionTitle": "本次上传",
+    "sessionEmpty": "暂无本次上传"
+  },
+  "copy": {
+    "url": "直链",
+    "markdown": "Markdown",
+    "html": "HTML",
+    "copied": "已复制到剪贴板",
+    "copiedLabel": "已复制 {label}",
+    "copiedUrl": "已复制直链",
+    "copiedMarkdown": "已复制 Markdown",
+    "copiedHtml": "已复制 HTML",
+    "copiedFormat": "已复制 {format}",
+    "failed": "复制失败",
+    "failedManual": "复制失败，请手动选中链接复制",
+    "curl": "已复制 cURL 示例"
+  },
+  "preferences": {
+    "title": "上传偏好",
+    "subtitle": "浏览器本地与账号设置，仅影响您的上传体验",
+    "back": "返回上传",
+    "processing": "图片处理",
+    "clientCompress": "客户端预压缩",
+    "clientCompressHint": "上传前在浏览器端压缩（服务端仍会转 WebP）",
+    "autoDeletePrefix": "自动删除超过",
+    "autoDeleteSuffix": "天的图片",
+    "autoDeleteHint": "仅清理开启后上传的图片，不影响此前已存的图片",
+    "webpQuality": "WebP 压缩质量",
+    "webpQualityHint": "客户端预压缩质量（1–100），需开启「客户端预压缩」",
+    "current": "当前：{n}",
+    "qualityHigh": "高质量",
+    "qualityMedium": "中等质量",
+    "qualityLow": "有损压缩",
+    "convenience": "便捷功能",
+    "autoCopy": "上传成功自动复制链接",
+    "autoCopyHint": "按所选格式复制到剪贴板"
+  },
+  "settings": {
+    "title": "系统设置",
+    "subtitle": "保存后写入数据库；环境变量优先级更高",
+    "uploadAccount": "上传与账号",
+    "defaultFolder": "默认上传目录",
+    "defaultFolderHint": "保存在本机浏览器，仅影响您的上传目标目录",
+    "allowRegistration": "开放用户注册",
+    "allowRegistrationHint": "允许新用户自行注册（普通用户仅可见自己的图片）",
+    "accessControl": "访问控制",
+    "refererHint": "Referer 防盗链，逗号分隔允许引用的域名，留空不限制",
+    "refererPlaceholder": "example.com, www.example.com",
+    "linkGeneration": "链接生成",
+    "imageBaseUrlHint": "生成图片链接的 URL 前缀，内网访问建议填公网域名",
+    "imageBaseUrlPlaceholder": "https://pic.example.com",
+    "imageBaseUrlActive": "当前生效：{url}",
+    "badgeEnv": ".env",
+    "badgeSaved": "已保存",
+    "badgeDefault": "默认",
+    "badgeUnset": "未设置",
+    "tokenEnv": "环境变量",
+    "tokenDb": "后台生成",
+    "tokenNone": "未配置",
+    "apiTokenLine": "API Token · {source} · v{version}",
+    "unsavedChanges": "有未保存的更改",
+    "manageToken": "管理 Token",
+    "envOverride": "该项已由环境变量覆盖，无法在后台修改",
+    "saved": "服务器配置已保存",
+    "saveFailed": "保存服务器配置失败",
+    "loadFailed": "加载设置失败"
+  },
+  "storage": {
+    "title": "存储设置",
+    "subtitle": "新上传写入活动后端；已有图片仍按原后端读取",
+    "activeBackend": "活动后端",
+    "backendLocal": "本地磁盘",
+    "backendCloud": "云存储",
+    "backendS3": "云存储",
+    "switchHint": "切换仅影响新上传，已有图片不受影响",
+    "provider": "预设",
+    "providerR2": "Cloudflare R2",
+    "providerCos": "腾讯云 COS",
+    "providerOss": "阿里云 OSS",
+    "providerAws": "AWS S3",
+    "providerCustom": "自定义",
+    "endpoint": "Endpoint",
+    "region": "Region",
+    "bucket": "Bucket",
+    "prefix": "对象前缀（可选）",
+    "prefixPlaceholder": "例如 pichost",
+    "forcePathStyle": "强制 Path-Style 访问",
+    "accessKey": "Access Key",
+    "secretKey": "Secret Key",
+    "servingMode": "访问方式",
+    "servingProxy": "代理（PicHost 同源）",
+    "servingPublic": "公开 URL（302 到 CDN）",
+    "servingHint": "公开模式下 Referer 防盗链需在 CDN/桶策略侧配置",
+    "publicUrl": "公开访问 URL",
+    "publicUrlPlaceholder": "https://cdn.example.com",
+    "testConnection": "测试连接",
+    "testSuccess": "连接成功",
+    "testFailed": "连接失败",
+    "saved": "存储配置已保存",
+    "saveFailed": "保存存储配置失败",
+    "loadFailed": "加载存储配置失败",
+    "envOverride": "存储配置已由环境变量覆盖，无法在后台修改",
+    "pageTitle": "存储管理",
+    "pageSubtitle": "管理多个存储后端，新上传写入默认后端",
+    "addBackend": "添加存储",
+    "editBackend": "编辑存储",
+    "formCreateHint": "配置云存储连接，保存后可设为默认写入目标",
+    "formEditHint": "修改连接信息；留空密钥则保持原值",
+    "sectionBasic": "基本信息",
+    "sectionConnection": "连接配置",
+    "sectionCredentials": "访问凭证",
+    "sectionAccess": "访问方式",
+    "sectionQuota": "容量配额",
+    "advancedOptions": "高级选项",
+    "servingProxyShort": "代理",
+    "servingPublicShort": "公开",
+    "backendName": "显示名称",
+    "badgeDefault": "默认",
+    "badgeDisabled": "已停用",
+    "badgeEnabled": "已启用",
+    "statTotal": "总量",
+    "statUsed": "已用",
+    "statFree": "剩余",
+    "usageRate": "使用率",
+    "indexImages": "PicHost 图片 {count} 张 · {size}",
+    "setDefault": "设为默认",
+    "actionSetDefault": "设默认",
+    "actionTest": "测试",
+    "disable": "停用",
+    "enable": "启用",
+    "usageCount": "{count} 张图片",
+    "quotaTotal": "套餐总量",
+    "quotaPlaceholder": "例如 10",
+    "quotaHint": "填写云存储套餐总量；已用按 PicHost 图片索引自动统计",
+    "quotaRequired": "请填写有效的套餐总量",
+    "notConfigured": "未配置",
+    "created": "存储后端已添加",
+    "deleted": "存储后端已删除",
+    "deleteFailed": "删除失败",
+    "deleteBlockedImages": "该后端仍有图片，请先迁移或删除图片后再删除",
+    "defaultUpdated": "默认后端已更新",
+    "deleteConfirmTitle": "删除存储",
+    "deleteConfirmBody": "确定删除「{name}」？此操作不可撤销。",
+    "secretsRequired": "新建存储需填写 Access Key 与 Secret Key",
+    "manageStorage": "管理对象存储",
+    "manageStorageHint": "配置 R2 / S3 / COS 等多后端与直链策略"
+  },
+  "stats": {
+    "title": "统计",
+    "subtitle": "数据概览与图库记录",
+    "uploadToday": "今日上传",
+    "uploadMonth": "本月上传",
+    "uploadTotal": "累计上传",
+    "storedCount": "当前库存",
+    "deleteToday": "今日删除",
+    "deleteMonth": "本月删除",
+    "deleteTotal": "累计删除",
+    "userCount": "注册用户数量",
+    "uploadBytes": "累计上传体积",
+    "folderDistribution": "上传目录分布",
+    "folderUsage": "目录占用",
+    "noData": "暂无数据",
+    "folderCount": "{count} 张 · {size}",
+    "gallery": "图库记录",
+    "folder": "目录",
+    "searchPlaceholder": "搜索文件名",
+    "clear": "清除",
+    "selected": "已选 {n}",
+    "batchDelete": "批量删除",
+    "scrollTop": "回到顶部",
+    "loadFailed": "加载统计失败",
+    "selectFirst": "请先选择图片",
+    "deleted": "已删除 {n} 张图片",
+    "deletePartialFail": "{n} 张图片删除失败",
+    "deleteFailed": "删除失败",
+    "deletedSingle": "已删除",
+    "allFolders": "全部",
+    "counting": "统计中…",
+    "summarySearch": "{folder} · 搜索「{q}」· 共 {total} 张",
+    "summaryTotal": "{folder} · 共 {total} 张"
+  },
+  "image": {
+    "empty": "暂无图片",
+    "previewFailed": "预览失败",
+    "uploader": "上传者：{name}"
+  },
+  "delete": {
+    "confirmTitle": "确认删除",
+    "confirmDesc": "确定要删除选中的 {count} 张图片吗？此操作不可恢复。",
+    "confirm": "确认删除"
+  },
+  "pagination": {
+    "pageOf": "第 {page} / {totalPages} 页 · 共 {total} {unit}",
+    "totalOnly": "共 {total} {unit}",
+    "first": "第一页",
+    "prev": "上一页",
+    "next": "下一页",
+    "last": "最后一页"
+  },
+  "api": {
+    "tokenTitle": "API Token",
+    "envOverrideTitle": "Token 由环境变量覆盖",
+    "envOverrideDesc": "修改 API_UPLOAD_TOKEN 后需重启服务；后台无法重新生成。",
+    "personalTitle": "个人 API Token",
+    "personalDesc": "此 Token 仅用于您自己的脚本上传，上传的图片归属您的账号。",
+    "notConfiguredTitle": "尚未配置 Token",
+    "notConfiguredDesc": "点击「重新生成」创建 Token，用于下方所有接口的 Auth-Token 鉴权。",
+    "regenerate": "重新生成",
+    "tokenSourceEnv": "来源：环境变量 API_UPLOAD_TOKEN",
+    "tokenSourceDb": "来源：后台生成（可重新生成）",
+    "tokenSourceNone": "来源：未配置",
+    "tokenHeader": "请求头：",
+    "tokenInvalidate": "重新生成后旧 Token 立即失效",
+    "docsTitle": "API 文档",
+    "curlExample": "cURL 示例",
+    "loadFailed": "加载 API 设置失败",
+    "regenerateEnvBlocked": "环境变量已配置 Token，无法在后台重新生成",
+    "regenerateFailed": "重新生成 Token 失败",
+    "confirmRegenerateTitle": "确认重新生成 Token？",
+    "confirmRegenerateDesc": "旧 Token 将立即失效，使用旧 Token 的脚本与自动化任务将无法继续调用接口，直到你更新为新 Token。",
+    "confirmRegenerate": "确认重新生成",
+    "newTokenTitle": "新 Token 已生成",
+    "newTokenDesc": "请立即复制保存。关闭弹窗后仍可在上方输入框复制，但请尽快更新到你的脚本配置中。",
+    "copyToken": "复制 Token",
+    "saved": "我已保存",
+    "docs": {
+      "upload": {
+        "title": "上传图片",
+        "descAdmin": "上传单张或多张图片。字段 image 传图片，folder 指定目录（不存在则自动创建）；仍兼容 file、files、type。",
+        "descUser": "上传单张或多张图片。字段 image 传图片；仍兼容 file、files。图片固定存入 images/ 目录。"
+      },
+      "list": {
+        "title": "获取图片列表",
+        "descAdmin": "分页列出图库，folder 可筛选目录，limit 默认 20、最大 100。",
+        "descUser": "分页列出您的图库，limit 默认 20、最大 100。"
+      },
+      "search": {
+        "title": "搜索图片",
+        "desc": "按文件名或路径关键词搜索，参数 q 必填。"
+      },
+      "delete": {
+        "title": "删除图片",
+        "desc": "通过 key 删除单张图片，key 为存储路径（如 images/2026/08/xxx.webp）。"
+      },
+      "batchDelete": {
+        "title": "批量删除",
+        "desc": "一次删除多张图片，请求体为 keys 数组。"
+      },
+      "twikoo": {
+        "title": "twikoo 兼容上传",
+        "desc": "兼容 Twikoo / EasyImage 2.0 协议，图片存入 twikoo/ 目录；字段 image + token。"
+      }
+    }
+  },
+  "userSettings": {
+    "loadFailed": "加载设置失败",
+    "saveFailed": "保存设置失败"
+  }
+}

nuxt.config.ts

@@ -11,7 +11,8 @@ const pkg = JSON.parse(readFileSync(join(rootDir, 'package.json'), 'utf8')) as {
 export default defineNuxtConfig({
   modules: [
     '@nuxt/eslint',
-    '@nuxt/ui'
+    '@nuxt/ui',
+    '@nuxtjs/i18n'
   ],
 
   devtools: {
@@ -49,5 +50,19 @@ export default defineNuxtConfig({
         braceStyle: '1tbs'
       }
     }
+  },
+
+  i18n: {
+    locales: [
+      { code: 'zh-CN', name: '简体中文', language: 'zh-CN', file: 'zh-CN.json' },
+      { code: 'en', name: 'English', language: 'en', file: 'en.json' }
+    ],
+    defaultLocale: 'zh-CN',
+    langDir: 'locales',
+    strategy: 'no_prefix',
+    detectBrowserLanguage: {
+      cookieKey: 'pic_locale',
+      fallbackLocale: 'zh-CN'
+    }
   }
 })

package.json

@@ -1,7 +1,7 @@
 {
   "name": "pichost",
-  "version": "1.0.0",
+  "version": "1.1.0",
-  "description": "Self-hosted image hosting for your NAS / home server — Nuxt admin UI, local disk storage, server-side WebP compression, referer protection, Twikoo/EasyImage compatible.",
+  "description": "Self-hosted image hosting for your NAS / home server — Nuxt admin UI, local disk or S3-compatible storage, server-side WebP compression, referer protection, Twikoo/EasyImage compatible.",
   "homepage": "https://github.com/O96u/PicHost#readme",
   "repository": {
     "type": "git",
@@ -32,12 +32,14 @@
     "typecheck": "nuxt typecheck",
     "test": "vitest run",
     "test:watch": "vitest",
-    "start": "node .output/server/index.mjs"
+    "start": "node .output/server/index.mjs",
+    "reset-password": "node server/cli/reset-password.mjs"
   },
   "dependencies": {
+    "@aws-sdk/client-s3": "^3.876.0",
     "@iconify-json/lucide": "^1.2.114",
     "@nuxt/ui": "^4.9.0",
-    "jose": "^6.0.11",
+    "@nuxtjs/i18n": "^10.6.0",
     "nuxt": "^4.4.8",
     "sharp": "^0.35.3",
     "tailwindcss": "^4.3.1"

scripts/assign-image-owner.ps1

@@ -0,0 +1,146 @@
+#Requires -Version 5.1
+<#
+.SYNOPSIS
+  Assign userId to image .meta.json files that are missing it (shows as 系统/API).
+
+.PARAMETER DataDir
+  PicHost data directory (contains images/, twikoo/, pichost.db). Default: ./data
+
+.PARAMETER UserId
+  Target user id. If omitted, uses the first admin from pichost.db.
+
+.PARAMETER Apply
+  Actually write files. Without this flag, only prints what would change (dry-run).
+
+.EXAMPLE
+  cd D:\Ou\PicHost
+  .\scripts\assign-image-owner.ps1
+
+.EXAMPLE
+  .\scripts\assign-image-owner.ps1 -DataDir D:\pic-host\data -Apply
+
+.EXAMPLE
+  .\scripts\assign-image-owner.ps1 -UserId 1 -Apply
+#>
+[CmdletBinding()]
+param(
+  [string] $DataDir = (Join-Path (Get-Location) 'data'),
+  [int] $UserId = 0,
+  [switch] $Apply
+)
+
+$ErrorActionPreference = 'Stop'
+
+function Resolve-AdminUserId {
+  param([string] $DbPath)
+
+  if (-not (Test-Path -LiteralPath $DbPath)) {
+    Write-Warning "pichost.db not found at $DbPath; using UserId = 1"
+    return 1
+  }
+
+  $repoRoot = Split-Path -Parent $PSScriptRoot
+  $nodeFile = Join-Path $env:TEMP "pichost-read-admin-$PID.mjs"
+  @'
+import { DatabaseSync } from "node:sqlite";
+const db = new DatabaseSync(process.argv[2]);
+const row = db.prepare("SELECT id FROM users WHERE role = 'admin' ORDER BY id ASC LIMIT 1").get();
+if (!row) process.exit(2);
+process.stdout.write(String(row.id));
+db.close();
+'@ | Set-Content -LiteralPath $nodeFile -Encoding utf8
+
+  Push-Location $repoRoot
+  try {
+    $output = & node $nodeFile $DbPath 2>&1
+    if ($LASTEXITCODE -eq 2) {
+      throw "No admin user in database. Run /setup first or pass -UserId explicitly."
+    }
+    if ($LASTEXITCODE -ne 0) {
+      throw "Failed to read admin from database: $output"
+    }
+    return [int]$output
+  }
+  finally {
+    Pop-Location
+    Remove-Item -LiteralPath $nodeFile -ErrorAction SilentlyContinue
+  }
+}
+
+function Read-MetaJson {
+  param([string] $Path)
+  $raw = [System.IO.File]::ReadAllText($Path, [System.Text.UTF8Encoding]::new($false))
+  return $raw | ConvertFrom-Json
+}
+
+function Write-MetaJson {
+  param(
+    [string] $Path,
+    [object] $Meta
+  )
+  # Compact single-line JSON, same style as PicHost putImage()
+  $json = $Meta | ConvertTo-Json -Compress -Depth 10
+  $utf8 = [System.Text.UTF8Encoding]::new($false)
+  [System.IO.File]::WriteAllText($Path, $json, $utf8)
+}
+
+if (-not (Test-Path -LiteralPath $DataDir)) {
+  throw "DataDir not found: $DataDir"
+}
+
+$resolved = Resolve-Path -LiteralPath $DataDir
+$DataDir = if ($resolved.ProviderPath) { $resolved.ProviderPath } else { $resolved.Path }
+
+if ($UserId -le 0) {
+  $UserId = Resolve-AdminUserId -DbPath (Join-Path $DataDir 'pichost.db')
+}
+
+Write-Host "DataDir : $DataDir"
+Write-Host "UserId  : $UserId"
+Write-Host "Mode    : $(if ($Apply) { 'APPLY (will modify files)' } else { 'DRY-RUN (pass -Apply to write)' })"
+Write-Host ''
+
+$metaFiles = Get-ChildItem -LiteralPath $DataDir -Recurse -File -Filter '*.meta.json' |
+  Where-Object { $_.Name -notlike 'pichost.db*' }
+
+if (-not $metaFiles) {
+  Write-Host 'No .meta.json files found under DataDir.'
+  exit 0
+}
+
+$patched = 0
+$skipped = 0
+$errors = 0
+
+foreach ($file in $metaFiles) {
+  try {
+    $meta = Read-MetaJson -Path $file.FullName
+    $current = $meta.PSObject.Properties['userId']
+    $hasUserId = $null -ne $current -and $null -ne $current.Value
+
+    if ($hasUserId) {
+      $skipped++
+      continue
+    }
+
+    $relative = [System.IO.Path]::GetRelativePath($DataDir, $file.FullName)
+    Write-Host "[patch] $relative -> userId $UserId"
+
+    if ($Apply) {
+      $meta | Add-Member -NotePropertyName userId -NotePropertyValue $UserId -Force
+      Write-MetaJson -Path $file.FullName -Meta $meta
+    }
+
+    $patched++
+  }
+  catch {
+    $errors++
+    Write-Warning "Failed: $($file.FullName) — $_"
+  }
+}
+
+Write-Host ''
+Write-Host "Done. patched=$patched skipped(already had userId)=$skipped errors=$errors"
+if (-not $Apply -and $patched -gt 0) {
+  Write-Host 'Re-run with -Apply to write changes.'
+}

server/api/admin/storage/[id].delete.ts

@@ -0,0 +1,39 @@
+import { requireAdminAuth } from '../../../utils/access'
+import { createApiError } from '../../../utils/api-error'
+import {
+  deleteStorageBackend,
+  isStorageEnvConfigured,
+  LOCAL_BACKEND_ID
+} from '../../../utils/storage-backends'
+
+export default defineEventHandler(async (event) => {
+  await requireAdminAuth(event)
+
+  if (isStorageEnvConfigured()) {
+    createApiError(event, 'FORBIDDEN', '存储配置已由环境变量覆盖，无法在后台修改', 409)
+  }
+
+  const id = getRouterParam(event, 'id')
+  if (!id) {
+    createApiError(event, 'INVALID_REQUEST', '缺少存储后端 ID', 400)
+  }
+
+  if (id === LOCAL_BACKEND_ID) {
+    createApiError(event, 'INVALID_REQUEST', '本地磁盘后端不可删除', 400)
+  }
+
+  try {
+    deleteStorageBackend(id)
+  } catch (error) {
+    const message = error instanceof Error ? error.message : '删除失败'
+    if (message.includes('stored images')) {
+      createApiError(event, 'INVALID_REQUEST', '该后端仍有图片，无法删除', 400)
+    }
+    if (message.includes('default backend')) {
+      createApiError(event, 'INVALID_REQUEST', '请先切换默认后端后再删除', 400)
+    }
+    createApiError(event, 'INVALID_REQUEST', message, 400)
+  }
+
+  return { success: true }
+})

server/api/admin/storage/[id].patch.ts

@@ -0,0 +1,129 @@
+import { requireAdminAuth } from '../../../utils/access'
+import { createApiError } from '../../../utils/api-error'
+import {
+  isStorageEnvConfigured,
+  LOCAL_BACKEND_ID,
+  updateStorageBackend,
+  getStorageBackendRow,
+  setDefaultBackend,
+  type StorageBackendPatch
+} from '../../../utils/storage-backends'
+import { parseS3Config, validateS3Config } from '../../../utils/storage/s3'
+import { parseQuotaBytes } from '../../../utils/storage-capacity'
+import type { ServingMode } from '../../../utils/storage/types'
+
+interface StoragePatchBody {
+  name?: string
+  config?: {
+    endpoint?: string
+    region?: string
+    bucket?: string
+    prefix?: string
+    forcePathStyle?: boolean
+  }
+  secrets?: {
+    accessKeyId?: string
+    secretAccessKey?: string
+  }
+  servingMode?: ServingMode
+  publicUrl?: string
+  quotaBytes?: number | null
+  enabled?: boolean
+  isDefault?: boolean
+}
+
+export default defineEventHandler(async (event) => {
+  await requireAdminAuth(event)
+
+  if (isStorageEnvConfigured()) {
+    createApiError(event, 'FORBIDDEN', '存储配置已由环境变量覆盖，无法在后台修改', 409)
+  }
+
+  const id = getRouterParam(event, 'id')
+  if (!id) {
+    createApiError(event, 'INVALID_REQUEST', '缺少存储后端 ID', 400)
+  }
+
+  const row = getStorageBackendRow(id)
+  if (!row) {
+    createApiError(event, 'INVALID_REQUEST', '存储后端不存在', 404)
+  }
+
+  const body = await readBody<StoragePatchBody>(event).catch(
+    (): StoragePatchBody => ({})
+  )
+
+  if (id === LOCAL_BACKEND_ID && body.isDefault === false) {
+    createApiError(event, 'INVALID_REQUEST', '必须保留一个默认存储后端', 400)
+  }
+
+  const patch: StorageBackendPatch = {}
+
+  if (body.name !== undefined) {
+    patch.name = body.name.trim() || row.name
+  }
+
+  if (body.config !== undefined && row.type === 's3') {
+    const current = parseS3Config(row.config_json) ?? {
+      endpoint: '',
+      region: 'auto',
+      bucket: ''
+    }
+    const next = {
+      endpoint: body.config.endpoint?.trim() ?? current.endpoint,
+      region: body.config.region?.trim() ?? current.region,
+      bucket: body.config.bucket?.trim() ?? current.bucket,
+      prefix: body.config.prefix?.trim() || undefined,
+      forcePathStyle: body.config.forcePathStyle ?? current.forcePathStyle
+    }
+    const error = validateS3Config(next)
+    if (error) {
+      createApiError(event, 'INVALID_REQUEST', error, 400)
+    }
+    patch.config = next
+  }
+
+  if (body.secrets !== undefined && row.type === 's3') {
+    patch.secrets = body.secrets
+  }
+
+  if (body.servingMode !== undefined) {
+    if (body.servingMode !== 'proxy' && body.servingMode !== 'public') {
+      createApiError(event, 'INVALID_REQUEST', '访问方式无效', 400)
+    }
+    patch.servingMode = body.servingMode
+  }
+
+  if (body.publicUrl !== undefined) {
+    patch.publicUrl = body.publicUrl.trim()
+  }
+
+  if (body.quotaBytes !== undefined) {
+    if (row.type === 's3') {
+      const quotaBytes = parseQuotaBytes(body.quotaBytes)
+      if (!quotaBytes) {
+        createApiError(event, 'INVALID_REQUEST', '请填写有效的存储套餐总量', 400)
+      }
+      patch.quotaBytes = quotaBytes
+    }
+  }
+
+  if (body.enabled !== undefined) {
+    if (id === LOCAL_BACKEND_ID && !body.enabled) {
+      createApiError(event, 'INVALID_REQUEST', '本地磁盘后端不可停用', 400)
+    }
+    patch.enabled = body.enabled
+  }
+
+  if (body.isDefault !== undefined) {
+    patch.isDefault = body.isDefault
+  }
+
+  updateStorageBackend(id, patch)
+
+  if (body.isDefault) {
+    setDefaultBackend(id)
+  }
+
+  return { success: true }
+})

server/api/admin/storage/[id]/test.post.ts

@@ -0,0 +1,34 @@
+import { requireAdminAuth } from '../../../../utils/access'
+import { createApiError } from '../../../../utils/api-error'
+import {
+  createBackendInstance,
+  getStorageBackendRow,
+  isStorageEnvConfigured
+} from '../../../../utils/storage-backends'
+
+export default defineEventHandler(async (event) => {
+  await requireAdminAuth(event)
+
+  if (isStorageEnvConfigured()) {
+    createApiError(event, 'FORBIDDEN', '存储配置已由环境变量覆盖，无法在后台测试', 409)
+  }
+
+  const id = getRouterParam(event, 'id')
+  if (!id) {
+    createApiError(event, 'INVALID_REQUEST', '缺少存储后端 ID', 400)
+  }
+
+  const row = getStorageBackendRow(id)
+  if (!row) {
+    createApiError(event, 'INVALID_REQUEST', '存储后端不存在', 404)
+  }
+
+  try {
+    const backend = createBackendInstance(row)
+    const result = await backend.testConnection()
+    return result
+  } catch (error) {
+    const message = error instanceof Error ? error.message : '连接失败'
+    return { ok: false, message }
+  }
+})

server/api/admin/storage/index.get.ts

@@ -0,0 +1,39 @@
+import { requireAdminAuth } from '../../../utils/access'
+import {
+  getBackendUsageStats,
+  isStorageEnvConfigured,
+  listStorageBackends
+} from '../../../utils/storage-backends'
+import { buildBackendCapacity } from '../../../utils/storage-capacity'
+import { getActiveBackendRow } from '../../../utils/storage/resolver'
+import type { StorageBackendInfo } from '../../../utils/storage/types'
+
+export default defineEventHandler(async (event) => {
+  await requireAdminAuth(event)
+
+  const rows = listStorageBackends()
+  const backends = await Promise.all(rows.map(async (backend: StorageBackendInfo & {
+    secretsMasked: Record<string, string>
+  }) => {
+    const usage = getBackendUsageStats(backend.id)
+    const capacity = await buildBackendCapacity(
+      backend.id,
+      backend.type,
+      usage.bytes,
+      backend.quotaBytes
+    )
+    return {
+      ...backend,
+      usage,
+      capacity
+    }
+  }))
+
+  const activeBackend = getActiveBackendRow()
+
+  return {
+    backends,
+    activeBackendId: activeBackend?.id ?? 'local',
+    envOverride: isStorageEnvConfigured()
+  }
+})

server/api/admin/storage/index.post.ts

@@ -0,0 +1,83 @@
+import { requireAdminAuth } from '../../../utils/access'
+import { createApiError } from '../../../utils/api-error'
+import {
+  insertStorageBackend,
+  isStorageEnvConfigured
+} from '../../../utils/storage-backends'
+import { validateS3Config } from '../../../utils/storage/s3'
+import { parseQuotaBytes } from '../../../utils/storage-capacity'
+import type { ServingMode } from '../../../utils/storage/types'
+
+interface StorageCreateBody {
+  name?: string
+  config?: {
+    endpoint?: string
+    region?: string
+    bucket?: string
+    prefix?: string
+    forcePathStyle?: boolean
+  }
+  secrets?: {
+    accessKeyId?: string
+    secretAccessKey?: string
+  }
+  servingMode?: ServingMode
+  publicUrl?: string
+  quotaBytes?: number | null
+  enabled?: boolean
+  isDefault?: boolean
+}
+
+export default defineEventHandler(async (event) => {
+  await requireAdminAuth(event)
+
+  if (isStorageEnvConfigured()) {
+    createApiError(event, 'FORBIDDEN', '存储配置已由环境变量覆盖，无法在后台修改', 409)
+  }
+
+  const body = await readBody<StorageCreateBody>(event).catch(
+    (): StorageCreateBody => ({})
+  )
+
+  const name = body.name?.trim() || 'S3 兼容存储'
+  const config = {
+    endpoint: body.config?.endpoint?.trim() ?? '',
+    region: body.config?.region?.trim() || 'auto',
+    bucket: body.config?.bucket?.trim() ?? '',
+    prefix: body.config?.prefix?.trim() || undefined,
+    forcePathStyle: body.config?.forcePathStyle ?? false
+  }
+
+  const error = validateS3Config(config)
+  if (error) {
+    createApiError(event, 'INVALID_REQUEST', error, 400)
+  }
+
+  const accessKeyId = body.secrets?.accessKeyId?.trim() ?? ''
+  const secretAccessKey = body.secrets?.secretAccessKey?.trim() ?? ''
+  if (!accessKeyId || !secretAccessKey) {
+    createApiError(event, 'INVALID_REQUEST', 'Access Key 与 Secret Key 不能为空', 400)
+  }
+
+  if (body.servingMode && body.servingMode !== 'proxy' && body.servingMode !== 'public') {
+    createApiError(event, 'INVALID_REQUEST', '访问方式无效', 400)
+  }
+
+  const quotaBytes = parseQuotaBytes(body.quotaBytes)
+  if (!quotaBytes) {
+    createApiError(event, 'INVALID_REQUEST', '请填写有效的存储套餐总量', 400)
+  }
+
+  const id = insertStorageBackend({
+    name,
+    config,
+    secrets: { accessKeyId, secretAccessKey },
+    servingMode: body.servingMode,
+    publicUrl: body.publicUrl?.trim(),
+    quotaBytes,
+    enabled: body.enabled,
+    isDefault: body.isDefault
+  })
+
+  return { success: true, id }
+})

server/cli/reset-password.mjs

@@ -0,0 +1,56 @@
+import { mkdirSync } from 'node:fs'
+import { join } from 'node:path'
+import { randomBytes, scryptSync } from 'node:crypto'
+import { DatabaseSync } from 'node:sqlite'
+
+const usernameArg = process.argv[2]?.trim() || ''
+
+if (process.argv.length > 3) {
+  console.error('Usage: reset-password [username]')
+  process.exit(1)
+}
+
+const dataDir = process.env.DATA_DIR || join(process.cwd(), 'data')
+mkdirSync(dataDir, { recursive: true })
+const db = new DatabaseSync(join(dataDir, 'pichost.db'))
+
+function fail(message) {
+  console.error(`Error: ${message}`)
+  process.exit(1)
+}
+
+let user
+if (usernameArg) {
+  user = db.prepare(`
+    SELECT id, username, role
+    FROM users
+    WHERE username = ?
+  `).get(usernameArg)
+  if (!user) fail(`user "${usernameArg}" not found`)
+} else {
+  const admins = db.prepare(`
+    SELECT id, username, role
+    FROM users
+    WHERE role = 'admin'
+    ORDER BY id ASC
+  `).all()
+  if (!admins.length) fail('no administrator account found')
+  if (admins.length > 1) {
+    const names = admins.map(row => row.username).join(', ')
+    fail(`multiple administrators (${names}); run: reset-password <username>`)
+  }
+  user = admins[0]
+}
+
+const password = randomBytes(9).toString('base64url')
+const salt = randomBytes(16).toString('hex')
+const derived = scryptSync(password, salt, 64, { N: 16384, r: 8, p: 1 })
+const passwordHash = `scrypt$16384$8$1$${salt}$${derived.toString('hex')}`
+
+db.prepare('UPDATE users SET password_hash = ? WHERE id = ?').run(passwordHash, user.id)
+db.prepare('DELETE FROM sessions WHERE user_id = ?').run(user.id)
+db.close()
+
+console.log(`[PicHost] User "${user.username}" (${user.role}) password reset.`)
+console.log(`[PicHost] New password: ${password}`)
+console.log('[PicHost] Sign in and change it under Account.')

server/plugins/startup.ts

@@ -1,5 +1,7 @@
-import { getDataDir } from '../utils/storage'
+import { getDataDir } from '../utils/data-dir'
 import { runAutoDeleteCleanup } from '../utils/auto-delete'
+import { migrateLocalImagesToIndex } from '../utils/image-index'
+import { ensureDefaultBackends } from '../utils/storage-backends'
 import { logInfo } from '../utils/logger'
 
 export default defineNitroPlugin(() => {
@@ -9,9 +11,17 @@ export default defineNitroPlugin(() => {
     dataDir: getDataDir(),
     nodeEnv: process.env.NODE_ENV || 'development',
     imageBaseUrl: process.env.IMAGE_BASE_URL || '(request origin)',
+    storageBackend: process.env.STORAGE_BACKEND || 'db',
     logLevel: process.env.LOG_LEVEL || 'info'
   })
 
+  ensureDefaultBackends()
+  void migrateLocalImagesToIndex().then((count) => {
+    if (count > 0) {
+      logInfo('migrated local images to index', { count })
+    }
+  })
+
   void runAutoDeleteCleanup().then((result) => {
     if (!result.skipped && (result.deleted > 0 || result.failed > 0)) {
       logInfo('startup auto-delete', { ...result })

server/utils/auto-delete.ts

@@ -1,6 +1,7 @@
 import { insertActivityLog, listAdminUserIds, listUserAutoDeletePolicies, type AutoDeletePolicy } from './db'
 import { getGlobalAutoDeletePolicy } from './env'
-import { deleteImage, headImage, listImageKeys, type StoredImage } from './storage'
+import { deleteImage, type StoredImage } from './storage'
+import { listImageKeysForAutoDelete } from './image-index'
 import { logInfo, logWarn } from './logger'
 
 export interface AutoDeleteResult {
@@ -73,23 +74,20 @@ export async function runAutoDeleteCleanup(): Promise<AutoDeleteResult> {
   }
 
   const nowMs = Date.now()
-  const keys = await listImageKeys()
+  const images = await listImageKeysForAutoDelete()
   let deleted = 0
   let failed = 0
 
-  for (const key of keys) {
+  for (const image of images) {
-    const image = await headImage(key)
-    if (!image) continue
-
     if (!shouldAutoDeleteImage(image, globalPolicy, adminUserIds, userPolicies, nowMs)) {
       continue
     }
 
     try {
-      await deleteImage(key)
+      await deleteImage(image.key)
       insertActivityLog({
         action: 'delete',
-        key,
+        key: image.key,
         originalName: image.originalName,
         size: image.size,
         contentType: image.contentType,
@@ -97,7 +95,7 @@ export async function runAutoDeleteCleanup(): Promise<AutoDeleteResult> {
       })
       deleted++
     } catch (error) {
-      logWarn('auto-delete failed', { key, error })
+      logWarn('auto-delete failed', { key: image.key, error })
       failed++
     }
   }

server/utils/data-dir.ts

@@ -0,0 +1,5 @@
+import { join } from 'node:path'
+
+export function getDataDir(): string {
+  return process.env.DATA_DIR || join(process.cwd(), 'data')
+}

server/utils/db.ts

@@ -1,7 +1,7 @@
 import { DatabaseSync } from 'node:sqlite'
 import { mkdirSync } from 'node:fs'
 import { join } from 'node:path'
-import { getDataDir } from './storage'
+import { getDataDir } from './data-dir'
 
 export type LogAction = 'upload' | 'delete'
 export type LogSource = 'web' | 'api' | 'twikoo'
@@ -29,7 +29,7 @@ export interface ActivityLogInput {
 
 let db: DatabaseSync | null = null
 
-function getDb(): DatabaseSync {
+export function getDb(): DatabaseSync {
   if (db) return db
 
   const dataDir = getDataDir()

server/utils/image-index.test.ts

@@ -0,0 +1,14 @@
+import { describe, expect, it } from 'vitest'
+import { validateImageKey } from './image-key'
+
+describe('image index key validation', () => {
+  it('accepts standard image keys used in index', () => {
+    expect(validateImageKey('images/2026/03/abc.webp')).toBe(true)
+    expect(validateImageKey('twikoo/2026/03/abc.webp')).toBe(true)
+  })
+
+  it('rejects path traversal keys', () => {
+    expect(validateImageKey('../secret')).toBe(false)
+    expect(validateImageKey('images/../../etc/passwd')).toBe(false)
+  })
+})

server/utils/image-index.ts

@@ -0,0 +1,418 @@
+import { promises as fs } from 'node:fs'
+import { join } from 'node:path'
+import { getDb } from './db'
+import { getDataDir } from './data-dir'
+import { isValidFolderName, validateImageKey, DEFAULT_FOLDER } from './image-key'
+import {
+  ensureDefaultBackends,
+  ensureStorageSchema,
+  LOCAL_BACKEND_ID
+} from './storage-backends'
+import type { PaginatedResult, StoredImage, StoredImageMeta } from './storage/types'
+
+const META_SUFFIX = '.meta.json'
+
+export interface ImageIndexRow {
+  key: string
+  backend_id: string
+  user_id: number | null
+  folder: string
+  original_name: string
+  content_type: string
+  size: number
+  uploaded_at: string
+}
+
+function keyToFilePath(key: string): string {
+  return join(getDataDir(), ...key.split('/'))
+}
+
+async function readLocalMeta(key: string): Promise<Partial<StoredImageMeta>> {
+  try {
+    const raw = await fs.readFile(keyToFilePath(key) + META_SUFFIX, 'utf8')
+    return JSON.parse(raw) as Partial<StoredImageMeta>
+  } catch {
+    return {}
+  }
+}
+
+function rowToStoredImage(row: ImageIndexRow): StoredImage {
+  const uploadedMs = new Date(row.uploaded_at).getTime()
+  return {
+    key: row.key,
+    backendId: row.backend_id,
+    originalName: row.original_name,
+    uploadedAt: row.uploaded_at,
+    contentType: row.content_type,
+    size: row.size,
+    userId: row.user_id,
+    mtimeMs: Number.isFinite(uploadedMs) ? uploadedMs : Date.now()
+  }
+}
+
+function buildUserFilterSql(
+  userFilter: number | 'admin' | undefined,
+  params: Array<string | number>
+): string {
+  if (userFilter === undefined || userFilter === 'admin') return ''
+  params.push(userFilter)
+  return ' AND user_id = ?'
+}
+
+export function insertImageIndex(input: {
+  key: string
+  backendId: string
+  userId?: number | null
+  originalName: string
+  contentType: string
+  size: number
+  uploadedAt: string
+}): void {
+  ensureStorageSchema()
+  const folder = input.key.split('/')[0] ?? DEFAULT_FOLDER
+  getDb().prepare(`
+    INSERT INTO images
+      (key, backend_id, user_id, folder, original_name, content_type, size, uploaded_at)
+    VALUES (?, ?, ?, ?, ?, ?, ?, ?)
+    ON CONFLICT(key) DO UPDATE SET
+      backend_id = excluded.backend_id,
+      user_id = excluded.user_id,
+      folder = excluded.folder,
+      original_name = excluded.original_name,
+      content_type = excluded.content_type,
+      size = excluded.size,
+      uploaded_at = excluded.uploaded_at
+  `).run(
+    input.key,
+    input.backendId,
+    input.userId ?? null,
+    folder,
+    input.originalName,
+    input.contentType,
+    input.size,
+    input.uploadedAt
+  )
+}
+
+export function deleteImageIndex(key: string): void {
+  ensureStorageSchema()
+  getDb().prepare('DELETE FROM images WHERE key = ?').run(key)
+}
+
+export function getImageIndexRow(key: string): ImageIndexRow | null {
+  ensureStorageSchema()
+  const row = getDb().prepare(`
+    SELECT key, backend_id, user_id, folder, original_name, content_type, size, uploaded_at
+    FROM images
+    WHERE key = ?
+  `).get(key) as ImageIndexRow | undefined
+  return row ?? null
+}
+
+export function getImageIndexAsStored(key: string): StoredImage | null {
+  const row = getImageIndexRow(key)
+  return row ? rowToStoredImage(row) : null
+}
+
+async function readDirNames(path: string): Promise<string[]> {
+  try {
+    const entries = await fs.readdir(path, { withFileTypes: true })
+    return entries.filter(e => e.isDirectory()).map(e => e.name)
+  } catch {
+    return []
+  }
+}
+
+async function readFileNames(path: string): Promise<string[]> {
+  try {
+    const entries = await fs.readdir(path, { withFileTypes: true })
+    return entries.filter(e => e.isFile()).map(e => e.name)
+  } catch {
+    return []
+  }
+}
+
+async function listLocalImageKeys(): Promise<string[]> {
+  const keys: string[] = []
+  const dataDir = getDataDir()
+  const prefixes = await readDirNames(dataDir)
+
+  for (const prefix of prefixes) {
+    if (!isValidFolderName(prefix)) continue
+    const root = join(dataDir, prefix)
+    const years = await readDirNames(root)
+    for (const year of years) {
+      const months = await readDirNames(join(root, year))
+      for (const month of months) {
+        const files = await readFileNames(join(root, year, month))
+        for (const file of files) {
+          if (file.endsWith(META_SUFFIX)) continue
+          const key = `${prefix}/${year}/${month}/${file}`
+          if (validateImageKey(key)) keys.push(key)
+        }
+      }
+    }
+  }
+
+  return keys
+}
+
+export async function migrateLocalImagesToIndex(): Promise<number> {
+  ensureDefaultBackends()
+  const keys = await listLocalImageKeys()
+  let inserted = 0
+
+  for (const key of keys) {
+    const existing = getImageIndexRow(key)
+    if (existing) continue
+
+    let stat
+    try {
+      stat = await fs.stat(keyToFilePath(key))
+    } catch {
+      continue
+    }
+
+    const meta = await readLocalMeta(key)
+    const uploadedAt = meta.uploadedAt ?? stat.mtime.toISOString()
+
+    insertImageIndex({
+      key,
+      backendId: LOCAL_BACKEND_ID,
+      userId: meta.userId ?? null,
+      originalName: meta.originalName ?? key.split('/').pop() ?? 'image',
+      contentType: meta.contentType ?? 'application/octet-stream',
+      size: stat.size,
+      uploadedAt
+    })
+    inserted++
+  }
+
+  return inserted
+}
+
+export async function listFolders(): Promise<string[]> {
+  ensureStorageSchema()
+  const rows = getDb().prepare(`
+    SELECT DISTINCT folder FROM images ORDER BY folder ASC
+  `).all() as Array<{ folder: string }>
+
+  const folders = rows.map(row => row.folder).filter(isValidFolderName)
+  if (!folders.includes(DEFAULT_FOLDER)) {
+    folders.push(DEFAULT_FOLDER)
+  }
+  return folders.sort((a, b) => a.localeCompare(b))
+}
+
+export async function listFoldersForUser(
+  userFilter?: number | 'admin'
+): Promise<string[]> {
+  ensureStorageSchema()
+  const params: Array<string | number> = []
+  const userSql = buildUserFilterSql(userFilter, params)
+
+  const rows = getDb().prepare(`
+    SELECT DISTINCT folder FROM images WHERE 1=1${userSql} ORDER BY folder ASC
+  `).all(...params) as Array<{ folder: string }>
+
+  const folders = rows.map(row => row.folder).filter(isValidFolderName)
+  if (!folders.length) {
+    folders.push(DEFAULT_FOLDER)
+  }
+  return folders.sort((a, b) => a.localeCompare(b))
+}
+
+export async function countImages(
+  folder?: string,
+  userFilter?: number | 'admin'
+): Promise<number> {
+  ensureStorageSchema()
+  const params: Array<string | number> = []
+  const clauses: string[] = ['1=1']
+
+  if (folder && isValidFolderName(folder)) {
+    clauses.push('folder = ?')
+    params.push(folder)
+  }
+
+  const userSql = buildUserFilterSql(userFilter, params)
+  const row = getDb().prepare(`
+    SELECT COUNT(*) AS count FROM images WHERE ${clauses.join(' AND ')}${userSql}
+  `).get(...params) as { count: number }
+
+  return row.count
+}
+
+function paginateSlice<T>(
+  all: T[],
+  limit: number,
+  page?: number
+): PaginatedResult<T> {
+  const total = all.length
+  const pageSize = limit
+  const totalPages = Math.max(1, Math.ceil(total / pageSize) || 1)
+  const requestedPage = Math.max(1, page ?? 1)
+  const safePage = Math.min(requestedPage, totalPages)
+  const start = (safePage - 1) * pageSize
+  const items = all.slice(start, start + pageSize)
+
+  return { items, total, page: safePage, pageSize, totalPages }
+}
+
+export async function listImages(options: {
+  limit: number
+  page?: number
+  folder?: string
+  userFilter?: number | 'admin'
+}): Promise<PaginatedResult<StoredImage>> {
+  ensureStorageSchema()
+  const params: Array<string | number> = []
+  const clauses: string[] = ['1=1']
+
+  if (options.folder && isValidFolderName(options.folder)) {
+    clauses.push('folder = ?')
+    params.push(options.folder)
+  }
+
+  const userSql = buildUserFilterSql(options.userFilter, params)
+  const rows = getDb().prepare(`
+    SELECT key, backend_id, user_id, folder, original_name, content_type, size, uploaded_at
+    FROM images
+    WHERE ${clauses.join(' AND ')}${userSql}
+    ORDER BY uploaded_at DESC, key DESC
+  `).all(...params) as unknown as ImageIndexRow[]
+
+  const sliced = paginateSlice(rows, options.limit, options.page)
+  return {
+    ...sliced,
+    items: sliced.items.map(rowToStoredImage)
+  }
+}
+
+export async function searchImages(options: {
+  query: string
+  limit: number
+  page?: number
+  folder?: string
+  userFilter?: number | 'admin'
+}): Promise<PaginatedResult<StoredImage>> {
+  ensureStorageSchema()
+  const needle = options.query.trim().toLowerCase()
+  const params: Array<string | number> = []
+  const clauses: string[] = ['1=1']
+
+  if (options.folder && isValidFolderName(options.folder)) {
+    clauses.push('folder = ?')
+    params.push(options.folder)
+  }
+
+  const userSql = buildUserFilterSql(options.userFilter, params)
+  const rows = getDb().prepare(`
+    SELECT key, backend_id, user_id, folder, original_name, content_type, size, uploaded_at
+    FROM images
+    WHERE ${clauses.join(' AND ')}${userSql}
+    ORDER BY uploaded_at DESC, key DESC
+  `).all(...params) as unknown as ImageIndexRow[]
+
+  const matches = rows.filter((row) => {
+    if (!needle) return true
+    return row.key.toLowerCase().includes(needle)
+      || row.original_name.toLowerCase().includes(needle)
+  })
+
+  const sliced = paginateSlice(matches, options.limit, options.page)
+  return {
+    ...sliced,
+    items: sliced.items.map(rowToStoredImage)
+  }
+}
+
+export async function getFolderStorageStats(
+  userFilter?: number | 'admin'
+): Promise<Array<{ folder: string, count: number, bytes: number }>> {
+  ensureStorageSchema()
+  const params: Array<string | number> = []
+  const userSql = buildUserFilterSql(userFilter, params)
+
+  const rows = getDb().prepare(`
+    SELECT folder, COUNT(*) AS count, COALESCE(SUM(size), 0) AS bytes
+    FROM images
+    WHERE 1=1${userSql}
+    GROUP BY folder
+    ORDER BY bytes DESC, folder ASC
+  `).all(...params) as Array<{ folder: string, count: number, bytes: number }>
+
+  return rows
+}
+
+function startOfDayIsoInShanghai(now = new Date()): string {
+  const shifted = new Date(now.getTime() + 8 * 60 * 60 * 1000)
+  const y = shifted.getUTCFullYear()
+  const m = shifted.getUTCMonth()
+  const d = shifted.getUTCDate()
+  return new Date(Date.UTC(y, m, d) - 8 * 60 * 60 * 1000).toISOString()
+}
+
+function startOfMonthIsoInShanghai(now = new Date()): string {
+  const shifted = new Date(now.getTime() + 8 * 60 * 60 * 1000)
+  const y = shifted.getUTCFullYear()
+  const m = shifted.getUTCMonth()
+  return new Date(Date.UTC(y, m, 1) - 8 * 60 * 60 * 1000).toISOString()
+}
+
+export async function getUserScopedStorageStats(userId: number): Promise<{
+  storedCount: number
+  uploadBytesTotal: number
+  uploadToday: number
+  uploadMonth: number
+  byFolder: Array<{ folder: string, count: number, bytes: number }>
+}> {
+  ensureStorageSchema()
+  const startOfDay = startOfDayIsoInShanghai()
+  const startOfMonth = startOfMonthIsoInShanghai()
+
+  const rows = getDb().prepare(`
+    SELECT folder, size, uploaded_at
+    FROM images
+    WHERE user_id = ?
+  `).all(userId) as Array<{ folder: string, size: number, uploaded_at: string }>
+
+  const map = new Map<string, { count: number, bytes: number }>()
+  let uploadBytesTotal = 0
+  let uploadToday = 0
+  let uploadMonth = 0
+
+  for (const row of rows) {
+    uploadBytesTotal += row.size
+    if (row.uploaded_at >= startOfDay) uploadToday += 1
+    if (row.uploaded_at >= startOfMonth) uploadMonth += 1
+
+    const current = map.get(row.folder) ?? { count: 0, bytes: 0 }
+    current.count += 1
+    current.bytes += row.size
+    map.set(row.folder, current)
+  }
+
+  const byFolder = [...map.entries()]
+    .map(([folder, stat]) => ({ folder, ...stat }))
+    .sort((a, b) => b.bytes - a.bytes || a.folder.localeCompare(b.folder))
+
+  return {
+    storedCount: rows.length,
+    uploadBytesTotal,
+    uploadToday,
+    uploadMonth,
+    byFolder
+  }
+}
+
+export async function listImageKeysForAutoDelete(): Promise<StoredImage[]> {
+  ensureStorageSchema()
+  const rows = getDb().prepare(`
+    SELECT key, backend_id, user_id, folder, original_name, content_type, size, uploaded_at
+    FROM images
+    ORDER BY uploaded_at ASC
+  `).all() as unknown as ImageIndexRow[]
+
+  return rows.map(rowToStoredImage)
+}

server/utils/image-response.ts

@@ -3,6 +3,10 @@ import type { ImageItem } from '~/types/image'
 import type { AllowedMimeType } from './constants'
 import type { StoredImage } from './storage'
 import { getImageBaseUrl } from './env'
+import { getActiveBackendRow } from './storage/resolver'
+import { getStorageBackendRow, getStorageBackendFromEnv } from './storage-backends'
+import { buildObjectKey, parseS3Config } from './storage/s3'
+import type { StorageBackendRow } from './storage/types'
 
 export function resolveImageOwner(
   userId: number | null | undefined,
@@ -27,7 +31,8 @@ export function mapStoredImageToItem(
 ): ImageItem {
   const item = buildImageItem({
     key: stored.key,
-    baseUrl: getImageBaseUrl(event),
+    event,
+    backendId: stored.backendId,
     originalName: stored.originalName,
     contentType: stored.contentType,
     size: stored.size,
@@ -47,6 +52,42 @@ export function buildImageUrl(baseUrl: string, key: string): string {
   return `${normalizedBase}/${key}`
 }
 
+export function buildPublicImageUrl(backendRow: StorageBackendRow, key: string): string {
+  const base = backendRow.public_url.replace(/\/$/, '')
+  if (backendRow.type === 's3') {
+    const config = parseS3Config(backendRow.config_json)
+    const objectKey = buildObjectKey(config?.prefix, key)
+    return `${base}/${objectKey}`
+  }
+  return `${base}/${key}`
+}
+
+export function resolveImageUrl(
+  event: H3Event,
+  key: string,
+  backendId?: string
+): string {
+  const envConfig = getStorageBackendFromEnv()
+  if (envConfig && (!backendId || backendId === 's3-primary')) {
+    if (envConfig.servingMode === 'public' && envConfig.publicUrl) {
+      const prefix = envConfig.config.prefix as string | undefined
+      const objectKey = buildObjectKey(prefix, key)
+      return `${envConfig.publicUrl.replace(/\/$/, '')}/${objectKey}`
+    }
+    return buildImageUrl(getImageBaseUrl(event), key)
+  }
+
+  const backendRow = backendId
+    ? getStorageBackendRow(backendId)
+    : getActiveBackendRow()
+
+  if (backendRow?.serving_mode === 'public' && backendRow.public_url) {
+    return buildPublicImageUrl(backendRow, key)
+  }
+
+  return buildImageUrl(getImageBaseUrl(event), key)
+}
+
 export function buildMarkdown(url: string, alt: string): string {
   const safeAlt = alt.replace(/[[\]]/g, '')
   return `![${safeAlt}](${url})`
@@ -68,13 +109,17 @@ function escapeHtml(value: string): string {
 
 export function buildImageItem(input: {
   key: string
-  baseUrl: string
+  baseUrl?: string
+  event?: H3Event
+  backendId?: string
   originalName: string
   contentType: AllowedMimeType | string
   size: number
   uploadedAt: string
 }) {
-  const url = buildImageUrl(input.baseUrl, input.key)
+  const url = input.event
+    ? resolveImageUrl(input.event, input.key, input.backendId)
+    : buildImageUrl(input.baseUrl ?? '', input.key)
   const alt = sanitizeOriginalName(input.originalName)
 
   return {

server/utils/process-image-upload.ts

@@ -14,7 +14,7 @@ import {
 import type { LogSource } from './db'
 import { generateImageKey } from './image-key'
 import { buildImageItem, sanitizeOriginalName } from './image-response'
-import { getImageBaseUrl, getWebpQuality } from './env'
+import { getWebpQuality } from './env'
 import { insertActivityLog } from './db'
 import { putImage } from './storage'
 import { logInfo, logWarn } from './logger'
@@ -121,7 +121,6 @@ export async function processSingleImageUpload(
 
   const compressed = await compressToWebp(bytes, detectedMime, getWebpQuality(event))
 
-  const imageBaseUrl = getImageBaseUrl(event)
   const uploadedAt = new Date().toISOString()
   const key = generateImageKey(
     compressed.mime,
@@ -173,7 +172,7 @@ export async function processSingleImageUpload(
   return {
     item: buildImageItem({
       key,
-      baseUrl: imageBaseUrl,
+      event,
       originalName,
       contentType: compressed.mime,
       size: compressed.bytes.byteLength,

server/utils/serve-image.ts

@@ -2,7 +2,9 @@ import type { H3Event } from 'h3'
 import { IMAGE_CACHE_CONTROL } from './constants'
 import { getAllowedRefererHostsRaw } from './env'
 import { validateImageKey } from './image-key'
+import { buildPublicImageUrl } from './image-response'
 import { createImageStream, headImage } from './storage'
+import { getBackendRowForKey } from './storage/resolver'
 
 /**
  * 图片直链处理（/{type}/YYYY/MM/file）
@@ -82,6 +84,12 @@ export async function serveImageByKey(event: H3Event, key: string) {
     throw createError({ statusCode: 404, statusMessage: 'Not Found' })
   }
 
+  const backendRow = await getBackendRowForKey(key)
+  if (backendRow.serving_mode === 'public' && backendRow.public_url) {
+    const publicUrl = buildPublicImageUrl(backendRow, key)
+    return sendRedirect(event, publicUrl, 302)
+  }
+
   const etag = `"${stored.size}-${Math.round(stored.mtimeMs)}"`
 
   setHeader(event, 'ETag', etag)
@@ -116,9 +124,9 @@ export async function serveImageByKey(event: H3Event, key: string) {
     setResponseStatus(event, 206)
     setHeader(event, 'Content-Range', `bytes ${range.start}-${range.end}/${stored.size}`)
     setHeader(event, 'Content-Length', range.end - range.start + 1)
-    return sendStream(event, createImageStream(key, range))
+    return sendStream(event, await createImageStream(key, range))
   }
 
   setHeader(event, 'Content-Length', stored.size)
-  return sendStream(event, createImageStream(key))
+  return sendStream(event, await createImageStream(key))
 }

server/utils/storage-backends.ts

@@ -0,0 +1,406 @@
+import type { DatabaseSync } from 'node:sqlite'
+import { getDb } from './db'
+import { LocalStorageBackend } from './storage/local'
+import {
+  parseS3Config,
+  parseS3Secrets,
+  S3StorageBackend
+} from './storage/s3'
+import type {
+  S3BackendConfig,
+  ServingMode,
+  StorageBackendInfo,
+  StorageBackendRow,
+  StorageBackendType
+} from './storage/types'
+
+export const LOCAL_BACKEND_ID = 'local'
+export const S3_BACKEND_ID = 's3-primary'
+
+function migrateStorageTables(database: DatabaseSync): void {
+  database.exec(`
+    CREATE TABLE IF NOT EXISTS storage_backends (
+      id TEXT PRIMARY KEY,
+      name TEXT NOT NULL,
+      type TEXT NOT NULL CHECK(type IN ('local', 's3')),
+      config_json TEXT NOT NULL DEFAULT '{}',
+      secret_json TEXT NOT NULL DEFAULT '{}',
+      serving_mode TEXT NOT NULL DEFAULT 'proxy' CHECK(serving_mode IN ('proxy', 'public')),
+      public_url TEXT NOT NULL DEFAULT '',
+      quota_bytes INTEGER,
+      enabled INTEGER NOT NULL DEFAULT 1,
+      is_default INTEGER NOT NULL DEFAULT 0,
+      sort_order INTEGER NOT NULL DEFAULT 0
+    );
+    CREATE TABLE IF NOT EXISTS images (
+      key TEXT PRIMARY KEY,
+      backend_id TEXT NOT NULL,
+      user_id INTEGER,
+      folder TEXT NOT NULL,
+      original_name TEXT NOT NULL,
+      content_type TEXT NOT NULL,
+      size INTEGER NOT NULL,
+      uploaded_at TEXT NOT NULL,
+      FOREIGN KEY (backend_id) REFERENCES storage_backends(id)
+    );
+    CREATE INDEX IF NOT EXISTS idx_images_uploaded_at ON images(uploaded_at DESC);
+    CREATE INDEX IF NOT EXISTS idx_images_backend_id ON images(backend_id);
+    CREATE INDEX IF NOT EXISTS idx_images_user_id ON images(user_id);
+    CREATE INDEX IF NOT EXISTS idx_images_folder ON images(folder);
+  `)
+}
+
+export function ensureStorageSchema(): void {
+  migrateStorageTables(getDb())
+}
+
+export function ensureDefaultBackends(): void {
+  ensureStorageSchema()
+  const db = getDb()
+
+  const local = db.prepare(`
+    SELECT id FROM storage_backends WHERE id = ?
+  `).get(LOCAL_BACKEND_ID)
+
+  if (!local) {
+    db.prepare(`
+      INSERT INTO storage_backends
+        (id, name, type, config_json, secret_json, serving_mode, public_url,
+         quota_bytes, enabled, is_default, sort_order)
+      VALUES (?, ?, 'local', '{}', '{}', 'proxy', '', NULL, 1, 1, 0)
+    `).run(LOCAL_BACKEND_ID, '本地磁盘')
+  }
+
+  const s3 = db.prepare(`
+    SELECT id FROM storage_backends WHERE id = ?
+  `).get(S3_BACKEND_ID)
+
+  if (!s3) {
+    db.prepare(`
+      INSERT INTO storage_backends
+        (id, name, type, config_json, secret_json, serving_mode, public_url,
+         quota_bytes, enabled, is_default, sort_order)
+      VALUES (?, ?, 's3', '{}', '{}', 'proxy', '', NULL, 0, 0, 1)
+    `).run(S3_BACKEND_ID, 'S3 兼容存储')
+  }
+}
+
+function rowToInfo(row: StorageBackendRow, _maskSecrets = true): StorageBackendInfo & {
+  secretsMasked: Record<string, string>
+} {
+  const config = row.type === 's3'
+    ? (parseS3Config(row.config_json) ?? {})
+    : {}
+  let secretsMasked: Record<string, string> = {}
+  if (row.type === 's3') {
+    const secrets = parseS3Secrets(row.secret_json)
+    secretsMasked = {
+      accessKeyId: secrets?.accessKeyId
+        ? maskSecret(secrets.accessKeyId)
+        : '',
+      secretAccessKey: secrets?.secretAccessKey
+        ? maskSecret(secrets.secretAccessKey)
+        : ''
+    }
+  }
+
+  return {
+    id: row.id,
+    name: row.name,
+    type: row.type,
+    config,
+    servingMode: row.serving_mode,
+    publicUrl: row.public_url,
+    quotaBytes: row.quota_bytes,
+    enabled: row.enabled === 1,
+    isDefault: row.is_default === 1,
+    sortOrder: row.sort_order,
+    secretsMasked
+  }
+}
+
+function maskSecret(value: string): string {
+  if (value.length <= 4) return '****'
+  return `${value.slice(0, 4)}${'*'.repeat(Math.min(8, value.length - 4))}`
+}
+
+export function listStorageBackendRows(): StorageBackendRow[] {
+  ensureDefaultBackends()
+  return getDb().prepare(`
+    SELECT id, name, type, config_json, secret_json, serving_mode, public_url,
+           quota_bytes, enabled, is_default, sort_order
+    FROM storage_backends
+    ORDER BY sort_order ASC, id ASC
+  `).all() as unknown as StorageBackendRow[]
+}
+
+export function listStorageBackends(maskSecrets = true): Array<StorageBackendInfo & {
+  secretsMasked: Record<string, string>
+}> {
+  return listStorageBackendRows().map(row => rowToInfo(row, maskSecrets))
+}
+
+export function getStorageBackendRow(id: string): StorageBackendRow | null {
+  ensureDefaultBackends()
+  const row = getDb().prepare(`
+    SELECT id, name, type, config_json, secret_json, serving_mode, public_url,
+           quota_bytes, enabled, is_default, sort_order
+    FROM storage_backends
+    WHERE id = ?
+  `).get(id) as StorageBackendRow | undefined
+  return row ?? null
+}
+
+export function getDefaultBackendRow(): StorageBackendRow | null {
+  ensureDefaultBackends()
+  const row = getDb().prepare(`
+    SELECT id, name, type, config_json, secret_json, serving_mode, public_url,
+           quota_bytes, enabled, is_default, sort_order
+    FROM storage_backends
+    WHERE is_default = 1 AND enabled = 1
+    LIMIT 1
+  `).get() as StorageBackendRow | undefined
+  return row ?? null
+}
+
+export function getBackendIdForKey(key: string): string | null {
+  ensureStorageSchema()
+  const row = getDb().prepare(`
+    SELECT backend_id FROM images WHERE key = ?
+  `).get(key) as { backend_id: string } | undefined
+  return row?.backend_id ?? null
+}
+
+export function setDefaultBackend(id: string): void {
+  const db = getDb()
+  db.exec('UPDATE storage_backends SET is_default = 0')
+  db.prepare(`
+    UPDATE storage_backends SET is_default = 1, enabled = 1 WHERE id = ?
+  `).run(id)
+}
+
+export interface StorageBackendPatch {
+  name?: string
+  config?: Record<string, unknown>
+  secrets?: { accessKeyId?: string, secretAccessKey?: string }
+  servingMode?: ServingMode
+  publicUrl?: string
+  quotaBytes?: number | null
+  enabled?: boolean
+  isDefault?: boolean
+}
+
+export function updateStorageBackend(id: string, patch: StorageBackendPatch): void {
+  const row = getStorageBackendRow(id)
+  if (!row) {
+    throw new Error(`Storage backend not found: ${id}`)
+  }
+
+  const name = patch.name ?? row.name
+  let configJson = row.config_json
+  let secretJson = row.secret_json
+
+  if (patch.config !== undefined) {
+    const current = row.type === 's3'
+      ? (parseS3Config(row.config_json) ?? {})
+      : {}
+    configJson = JSON.stringify({ ...current, ...patch.config })
+  }
+
+  if (patch.secrets !== undefined && row.type === 's3') {
+    const current = parseS3Secrets(row.secret_json) ?? {
+      accessKeyId: '',
+      secretAccessKey: ''
+    }
+    const next = {
+      accessKeyId: patch.secrets.accessKeyId?.trim()
+        ? patch.secrets.accessKeyId.trim()
+        : current.accessKeyId,
+      secretAccessKey: patch.secrets.secretAccessKey?.trim()
+        ? patch.secrets.secretAccessKey.trim()
+        : current.secretAccessKey
+    }
+    secretJson = JSON.stringify(next)
+  }
+
+  const servingMode = patch.servingMode ?? row.serving_mode
+  const publicUrl = patch.publicUrl ?? row.public_url
+  const quotaBytes = patch.quotaBytes !== undefined
+    ? patch.quotaBytes
+    : row.quota_bytes
+  const enabled = patch.enabled !== undefined
+    ? (patch.enabled ? 1 : 0)
+    : row.enabled
+
+  getDb().prepare(`
+    UPDATE storage_backends
+    SET name = ?, config_json = ?, secret_json = ?, serving_mode = ?,
+        public_url = ?, quota_bytes = ?, enabled = ?
+    WHERE id = ?
+  `).run(name, configJson, secretJson, servingMode, publicUrl, quotaBytes, enabled, id)
+
+  if (patch.isDefault) {
+    setDefaultBackend(id)
+  }
+}
+
+export function isStorageEnvConfigured(): boolean {
+  return getStorageBackendFromEnv() !== null
+}
+
+export function getStorageBackendFromEnv(): {
+  type: StorageBackendType
+  config: Record<string, unknown>
+  secrets: { accessKeyId: string, secretAccessKey: string }
+  servingMode: ServingMode
+  publicUrl: string
+} | null {
+  const backendType = process.env.STORAGE_BACKEND?.trim()
+  if (backendType !== 's3') return null
+
+  const endpoint = process.env.S3_ENDPOINT?.trim() ?? ''
+  const region = process.env.S3_REGION?.trim() ?? ''
+  const bucket = process.env.S3_BUCKET?.trim() ?? ''
+  const accessKeyId = process.env.S3_ACCESS_KEY?.trim() ?? ''
+  const secretAccessKey = process.env.S3_SECRET_KEY?.trim() ?? ''
+
+  if (!endpoint || !bucket || !accessKeyId || !secretAccessKey) {
+    return null
+  }
+
+  return {
+    type: 's3',
+    config: {
+      endpoint,
+      region: region || 'auto',
+      bucket,
+      prefix: process.env.S3_PREFIX?.trim() || undefined,
+      forcePathStyle: process.env.S3_FORCE_PATH_STYLE === 'true'
+    },
+    secrets: { accessKeyId, secretAccessKey },
+    servingMode: process.env.S3_PUBLIC_URL?.trim() ? 'public' : 'proxy',
+    publicUrl: process.env.S3_PUBLIC_URL?.trim() ?? ''
+  }
+}
+
+export function createBackendInstance(row: StorageBackendRow) {
+  if (row.type === 'local') {
+    return new LocalStorageBackend(
+      row.id,
+      row.serving_mode,
+      row.public_url
+    )
+  }
+
+  const config = parseS3Config(row.config_json)
+  const secrets = parseS3Secrets(row.secret_json)
+  if (!config || !secrets) {
+    throw new Error(`Invalid S3 configuration for backend ${row.id}`)
+  }
+
+  return new S3StorageBackend(
+    row.id,
+    config,
+    secrets,
+    row.serving_mode,
+    row.public_url
+  )
+}
+
+export function createBackendFromEnv() {
+  const env = getStorageBackendFromEnv()
+  if (!env) return null
+
+  return new S3StorageBackend(
+    S3_BACKEND_ID,
+    env.config as unknown as S3BackendConfig,
+    env.secrets,
+    env.servingMode,
+    env.publicUrl
+  )
+}
+
+export function getBackendUsageStats(backendId: string): { count: number, bytes: number } {
+  ensureStorageSchema()
+  const row = getDb().prepare(`
+    SELECT COUNT(*) AS count, COALESCE(SUM(size), 0) AS bytes
+    FROM images
+    WHERE backend_id = ?
+  `).get(backendId) as { count: number, bytes: number }
+  return { count: row.count, bytes: row.bytes }
+}
+
+function getNextSortOrder(): number {
+  const row = getDb().prepare(`
+    SELECT COALESCE(MAX(sort_order), 0) AS max_order FROM storage_backends
+  `).get() as { max_order: number }
+  return row.max_order + 1
+}
+
+export function generateStorageBackendId(): string {
+  const bytes = new Uint8Array(4)
+  crypto.getRandomValues(bytes)
+  const suffix = Array.from(bytes, b => b.toString(16).padStart(2, '0')).join('')
+  return `s3-${suffix}`
+}
+
+export function insertStorageBackend(input: {
+  id?: string
+  name: string
+  config: S3BackendConfig
+  secrets: { accessKeyId: string, secretAccessKey: string }
+  servingMode?: ServingMode
+  publicUrl?: string
+  quotaBytes?: number | null
+  enabled?: boolean
+  isDefault?: boolean
+}): string {
+  ensureDefaultBackends()
+  const id = input.id ?? generateStorageBackendId()
+  const sortOrder = getNextSortOrder()
+
+  getDb().prepare(`
+    INSERT INTO storage_backends
+      (id, name, type, config_json, secret_json, serving_mode, public_url,
+       quota_bytes, enabled, is_default, sort_order)
+    VALUES (?, ?, 's3', ?, ?, ?, ?, ?, ?, 0, ?)
+  `).run(
+    id,
+    input.name,
+    JSON.stringify(input.config),
+    JSON.stringify(input.secrets),
+    input.servingMode ?? 'proxy',
+    input.publicUrl ?? '',
+    input.quotaBytes ?? null,
+    input.enabled === false ? 0 : 1,
+    sortOrder
+  )
+
+  if (input.isDefault) {
+    setDefaultBackend(id)
+  }
+
+  return id
+}
+
+export function deleteStorageBackend(id: string): void {
+  if (id === LOCAL_BACKEND_ID) {
+    throw new Error('Cannot delete local backend')
+  }
+
+  const usage = getBackendUsageStats(id)
+  if (usage.count > 0) {
+    throw new Error('Cannot delete backend with stored images')
+  }
+
+  const row = getStorageBackendRow(id)
+  if (!row) {
+    throw new Error(`Storage backend not found: ${id}`)
+  }
+
+  if (row.is_default) {
+    throw new Error('Cannot delete the default backend')
+  }
+
+  getDb().prepare('DELETE FROM storage_backends WHERE id = ?').run(id)
+}

server/utils/storage-capacity.test.ts

@@ -0,0 +1,32 @@
+import { describe, expect, it } from 'vitest'
+import { buildBackendCapacity } from './storage-capacity'
+
+describe('buildBackendCapacity', () => {
+  it('calculates quota-based capacity for s3 backends', async () => {
+    const quotaBytes = 10 * 1024 ** 3
+    const capacity = await buildBackendCapacity('s3-test', 's3', 72_390, quotaBytes)
+    expect(capacity.source).toBe('quota')
+    expect(capacity.totalBytes).toBe(quotaBytes)
+    expect(capacity.usedBytes).toBe(72_390)
+    expect(capacity.freeBytes).toBe(quotaBytes - 72_390)
+    expect(capacity.percent).toBeGreaterThanOrEqual(0)
+  })
+
+  it('allows usage percent to exceed 100 when over quota', async () => {
+    const quotaBytes = 1024
+    const capacity = await buildBackendCapacity('s3-test', 's3', 2048, quotaBytes)
+    expect(capacity.percent).toBe(200)
+    expect(capacity.freeBytes).toBe(0)
+  })
+
+  it('reads disk stats for local backend when available', async () => {
+    const capacity = await buildBackendCapacity('local', 'local', 1024, null)
+    if (capacity.source === 'disk') {
+      expect(capacity.totalBytes).toBeGreaterThan(0)
+      expect(capacity.freeBytes).not.toBeNull()
+      expect(capacity.percent).not.toBeNull()
+    } else {
+      expect(capacity.usedBytes).toBe(1024)
+    }
+  })
+})

server/utils/storage-capacity.ts

@@ -0,0 +1,92 @@
+import { statfs } from 'node:fs/promises'
+import { getDataDir } from './data-dir'
+import { LOCAL_BACKEND_ID } from './storage-backends'
+
+export interface StorageCapacity {
+  totalBytes: number | null
+  usedBytes: number
+  freeBytes: number | null
+  percent: number | null
+  source: 'disk' | 'quota'
+}
+
+export function parseQuotaBytes(raw: unknown): number | null {
+  const value = Number(raw)
+  if (!Number.isFinite(value) || value <= 0) return null
+  return Math.round(value)
+}
+
+export async function getLocalVolumeStats(): Promise<{
+  totalBytes: number
+  freeBytes: number
+  usedBytes: number
+} | null> {
+  try {
+    const stats = await statfs(getDataDir())
+    const totalBytes = Number(stats.bsize) * Number(stats.blocks)
+    const freeBytes = Number(stats.bsize) * Number(stats.bavail)
+    if (!Number.isFinite(totalBytes) || totalBytes <= 0) return null
+    return {
+      totalBytes,
+      freeBytes: Math.max(0, freeBytes),
+      usedBytes: Math.max(0, totalBytes - freeBytes)
+    }
+  } catch {
+    return null
+  }
+}
+
+function buildQuotaCapacity(quotaBytes: number, indexBytes: number): StorageCapacity {
+  const usedBytes = indexBytes
+  const freeBytes = Math.max(0, quotaBytes - usedBytes)
+  const percent = Math.round((usedBytes / quotaBytes) * 1000) / 10
+  return {
+    totalBytes: quotaBytes,
+    usedBytes,
+    freeBytes,
+    percent,
+    source: 'quota'
+  }
+}
+
+export async function buildBackendCapacity(
+  backendId: string,
+  backendType: 'local' | 's3',
+  indexBytes: number,
+  quotaBytes: number | null
+): Promise<StorageCapacity> {
+  if (backendType === 's3') {
+    if (quotaBytes && quotaBytes > 0) {
+      return buildQuotaCapacity(quotaBytes, indexBytes)
+    }
+    return {
+      totalBytes: null,
+      usedBytes: indexBytes,
+      freeBytes: null,
+      percent: null,
+      source: 'quota'
+    }
+  }
+
+  if (backendId === LOCAL_BACKEND_ID || backendType === 'local') {
+    const volume = await getLocalVolumeStats()
+    if (volume) {
+      const percent = Math.round((volume.usedBytes / volume.totalBytes) * 1000) / 10
+      return {
+        totalBytes: volume.totalBytes,
+        usedBytes: volume.usedBytes,
+        freeBytes: volume.freeBytes,
+        percent,
+        source: 'disk'
+      }
+    }
+  }
+
+  return {
+    totalBytes: null,
+    usedBytes: indexBytes,
+    freeBytes: null,
+    percent: null,
+    source: 'disk'
+  }
+}

server/utils/storage.ts

@@ -1,314 +1,119 @@
-import { createReadStream, promises as fs } from 'node:fs'
 import type { ReadStream } from 'node:fs'
-import { dirname, join } from 'node:path'
+import type { Readable } from 'node:stream'
-import { isValidFolderName, validateImageKey, DEFAULT_FOLDER } from './image-key'
+import {
+  countImages as countImagesFromIndex,
+  deleteImageIndex,
+  getFolderStorageStats as getFolderStorageStatsFromIndex,
+  getImageIndexAsStored,
+  getUserScopedStorageStats as getUserScopedStorageStatsFromIndex,
+  insertImageIndex,
+  listFolders as listFoldersFromIndex,
+  listFoldersForUser as listFoldersForUserFromIndex,
+  listImageKeysForAutoDelete,
+  listImages as listImagesFromIndex,
+  searchImages as searchImagesFromIndex
+} from './image-index'
+import {
+  getActiveBackend,
+  getBackendForKey
+} from './storage/resolver'
+import type {
+  FolderStorageStat,
+  PaginatedResult,
+  StoredImage,
+  StoredImageMeta
+} from './storage/types'
 
-/**
+export type {
- * 本地文件系统存储层
+  FolderStorageStat,
- *
+  PaginatedResult,
- * 目录布局（DATA_DIR 默认 ./data，容器内挂载 /data）：
+  StoredImage,
- *   <DATA_DIR>/<type>/YYYY/MM/<随机ID>.webp            按上传 type 分目录（默认 images）
+  StoredImageMeta
- *   <DATA_DIR>/twikoo/YYYY/MM/<随机ID>.webp           twikoo 评论图片
+} from './storage/types'
- *   <DATA_DIR>/<type>/YYYY/MM/<随机ID>.webp.meta.json  元数据（原始文件名等）
- *
- * 列表按日期降序（新月份在前），meta 缺失时回退到文件属性。
- */
 
-export interface StoredImageMeta {
+export { getDataDir } from './data-dir'
-  originalName: string
-  uploadedAt: string
-  contentType: string
-  size: number
-  userId?: number | null
-}
-
-export interface StoredImage extends StoredImageMeta {
-  key: string
-  mtimeMs: number
-}
-
-const META_SUFFIX = '.meta.json'
-
-export function getDataDir(): string {
-  return process.env.DATA_DIR || join(process.cwd(), 'data')
-}
-
-function keyToFilePath(key: string): string {
-  // key 均已通过 validateImageKey 校验，不存在路径穿越
-  return join(getDataDir(), ...key.split('/'))
-}
-
-function contentTypeFromKey(key: string): string {
-  const ext = key.split('.').pop()?.toLowerCase()
-  switch (ext) {
-    case 'jpg':
-    case 'jpeg':
-      return 'image/jpeg'
-    case 'png':
-      return 'image/png'
-    case 'gif':
-      return 'image/gif'
-    case 'webp':
-      return 'image/webp'
-    case 'svg':
-      return 'image/svg+xml'
-    case 'ico':
-      return 'image/x-icon'
-    default:
-      return 'application/octet-stream'
-  }
-}
-
-async function readMeta(key: string): Promise<Partial<StoredImageMeta>> {
-  try {
-    const raw = await fs.readFile(keyToFilePath(key) + META_SUFFIX, 'utf8')
-    return JSON.parse(raw) as Partial<StoredImageMeta>
-  } catch {
-    return {}
-  }
-}
 
 export async function putImage(
   key: string,
   bytes: Uint8Array,
   meta: StoredImageMeta
 ): Promise<void> {
-  const filePath = keyToFilePath(key)
+  const backend = await getActiveBackend()
-  await fs.mkdir(dirname(filePath), { recursive: true })
+  await backend.put(key, bytes, meta)
-  await fs.writeFile(filePath, bytes)
+  insertImageIndex({
-  await fs.writeFile(filePath + META_SUFFIX, JSON.stringify(meta))
+    key,
+    backendId: backend.id,
+    userId: meta.userId,
+    originalName: meta.originalName,
+    contentType: meta.contentType,
+    size: meta.size,
+    uploadedAt: meta.uploadedAt
+  })
 }
 
 export async function headImage(key: string): Promise<StoredImage | null> {
-  if (!validateImageKey(key)) return null
+  const indexed = getImageIndexAsStored(key)
+  if (indexed) return indexed
 
-  let stat
+  const backend = await getBackendForKey(key)
-  try {
+  const stored = await backend.head(key)
-    stat = await fs.stat(keyToFilePath(key))
+  if (!stored) return null
-  } catch {
-    return null
-  }
-  if (!stat.isFile()) return null
 
-  const meta = await readMeta(key)
+  insertImageIndex({
-  return {
+    key: stored.key,
-    key,
+    backendId: backend.id,
-    size: stat.size,
+    userId: stored.userId,
-    mtimeMs: stat.mtimeMs,
+    originalName: stored.originalName,
-    contentType: meta.contentType ?? contentTypeFromKey(key),
+    contentType: stored.contentType,
-    originalName: meta.originalName ?? key.split('/').pop() ?? 'image',
+    size: stored.size,
-    uploadedAt: meta.uploadedAt ?? stat.mtime.toISOString(),
+    uploadedAt: stored.uploadedAt
-    userId: meta.userId ?? null
+  })
-  }
+
+  return { ...stored, backendId: backend.id }
 }
 
-export function createImageStream(
+export async function createImageStream(
   key: string,
   range?: { start: number, end: number }
-): ReadStream {
+): Promise<ReadStream | Readable> {
-  return createReadStream(keyToFilePath(key), range)
+  const backend = await getBackendForKey(key)
+  return backend.createStream(key, range)
 }
 
 export async function deleteImage(key: string): Promise<void> {
-  const filePath = keyToFilePath(key)
+  const backend = await getBackendForKey(key)
-  await fs.unlink(filePath)
+  await backend.delete(key)
-  await fs.unlink(filePath + META_SUFFIX).catch(() => {
+  deleteImageIndex(key)
-    // meta 文件可能不存在（外部导入的历史图片）
-  })
-}
-
-export interface PaginatedResult<T> {
-  items: T[]
-  total: number
-  page: number
-  pageSize: number
-  totalPages: number
 }
 
 export async function listFolders(): Promise<string[]> {
-  const names = await readDirNames(getDataDir())
+  return listFoldersFromIndex()
-  const folders = names.filter(isValidFolderName)
-  if (!folders.includes(DEFAULT_FOLDER)) {
-    folders.push(DEFAULT_FOLDER)
-  }
-  return folders.sort((a, b) => a.localeCompare(b))
 }
 
-/** 遍历各 type 目录下的 YYYY/MM，返回按日期降序的 key 列表（新月份在前） */
+export async function listImageKeys(): Promise<string[]> {
-export async function listImageKeys(folder?: string): Promise<string[]> {
+  const images = await listImageKeysForAutoDelete()
-  const keys: string[] = []
+  return images.map(image => image.key)
-  const prefixes = folder && isValidFolderName(folder)
-    ? [folder]
-    : await listFolders()
-
-  for (const prefix of prefixes) {
-    const root = join(getDataDir(), prefix)
-    const years = await readDirNames(root)
-    for (const year of years) {
-      const months = await readDirNames(join(root, year))
-      for (const month of months) {
-        const files = await readFileNames(join(root, year, month))
-        for (const file of files) {
-          if (file.endsWith(META_SUFFIX)) continue
-          const key = `${prefix}/${year}/${month}/${file}`
-          if (validateImageKey(key)) keys.push(key)
-        }
-      }
-    }
-  }
-
-  // 按 YYYY/MM/文件名 降序排，使不同 type 按时间交错而不是分块
-  return keys.sort((a, b) => {
-    const aDate = a.slice(a.indexOf('/') + 1)
-    const bDate = b.slice(b.indexOf('/') + 1)
-    return bDate.localeCompare(aDate) || b.localeCompare(a)
-  })
-}
-
-async function readDirNames(path: string): Promise<string[]> {
-  try {
-    const entries = await fs.readdir(path, { withFileTypes: true })
-    return entries.filter(e => e.isDirectory()).map(e => e.name)
-  } catch {
-    return []
-  }
-}
-
-function matchesUserFilter(
-  meta: StoredImageMeta,
-  userFilter: number | 'admin'
-): boolean {
-  if (userFilter === 'admin') return true
-  const ownerId = meta.userId ?? null
-  if (ownerId === null) return false
-  return ownerId === userFilter
-}
-
-async function filterKeysByUser(
-  keys: string[],
-  userFilter?: number | 'admin'
-): Promise<string[]> {
-  if (userFilter === undefined || userFilter === 'admin') {
-    return keys
-  }
-
-  const filtered: string[] = []
-  for (const key of keys) {
-    const meta = await readMeta(key)
-    if (matchesUserFilter(meta as StoredImageMeta, userFilter)) {
-      filtered.push(key)
-    }
-  }
-  return filtered
-}
-
-async function readFileNames(path: string): Promise<string[]> {
-  try {
-    const entries = await fs.readdir(path, { withFileTypes: true })
-    return entries.filter(e => e.isFile()).map(e => e.name)
-  } catch {
-    return []
-  }
-}
-
-function paginateSlice<T>(
-  all: T[],
-  limit: number,
-  page?: number
-): PaginatedResult<T> {
-  const total = all.length
-  const pageSize = limit
-  const totalPages = Math.max(1, Math.ceil(total / pageSize) || 1)
-  const requestedPage = Math.max(1, page ?? 1)
-  const safePage = Math.min(requestedPage, totalPages)
-  const start = (safePage - 1) * pageSize
-  const items = all.slice(start, start + pageSize)
-
-  return {
-    items,
-    total,
-    page: safePage,
-    pageSize,
-    totalPages
-  }
 }
 
 export async function countImages(
   folder?: string,
   userFilter?: number | 'admin'
 ): Promise<number> {
-  let keys = await listImageKeys(folder)
+  return countImagesFromIndex(folder, userFilter)
-  keys = await filterKeysByUser(keys, userFilter)
-  return keys.length
 }
 
-export interface FolderStorageStat {
-  folder: string
-  count: number
-  bytes: number
-}
-
-/** 按顶层目录统计当前磁盘上的图片数量与体积 */
 export async function getFolderStorageStats(
   userFilter?: number | 'admin'
 ): Promise<FolderStorageStat[]> {
-  let keys = await listImageKeys()
+  return getFolderStorageStatsFromIndex(userFilter)
-  keys = await filterKeysByUser(keys, userFilter)
-  const map = new Map<string, { count: number, bytes: number }>()
-
-  for (const key of keys) {
-    const folder = key.split('/')[0] ?? 'unknown'
-    const meta = await headImage(key)
-    if (!meta) continue
-    const current = map.get(folder) ?? { count: 0, bytes: 0 }
-    current.count += 1
-    current.bytes += meta.size
-    map.set(folder, current)
-  }
-
-  return [...map.entries()]
-    .map(([folder, stat]) => ({ folder, ...stat }))
-    .sort((a, b) => b.bytes - a.bytes || a.folder.localeCompare(b.folder))
 }
 
 export async function listFoldersForUser(
   userFilter?: number | 'admin'
 ): Promise<string[]> {
-  if (userFilter === undefined || userFilter === 'admin') {
+  return listFoldersForUserFromIndex(userFilter)
-    return listFolders()
 }
 
-  let keys = await listImageKeys()
-  keys = await filterKeysByUser(keys, userFilter)
-  const folders = new Set<string>()
-  for (const key of keys) {
-    const folder = key.split('/')[0]
-    if (folder && isValidFolderName(folder)) {
-      folders.add(folder)
-    }
-  }
-  if (!folders.size) {
-    folders.add(DEFAULT_FOLDER)
-  }
-  return [...folders].sort((a, b) => a.localeCompare(b))
-}
-
-function startOfDayIsoInShanghai(now = new Date()): string {
-  const shifted = new Date(now.getTime() + 8 * 60 * 60 * 1000)
-  const y = shifted.getUTCFullYear()
-  const m = shifted.getUTCMonth()
-  const d = shifted.getUTCDate()
-  return new Date(Date.UTC(y, m, d) - 8 * 60 * 60 * 1000).toISOString()
-}
-
-function startOfMonthIsoInShanghai(now = new Date()): string {
-  const shifted = new Date(now.getTime() + 8 * 60 * 60 * 1000)
-  const y = shifted.getUTCFullYear()
-  const m = shifted.getUTCMonth()
-  return new Date(Date.UTC(y, m, 1) - 8 * 60 * 60 * 1000).toISOString()
-}
-
-/** 普通用户统计：基于本人图片 meta，不依赖全局 activity_logs */
 export async function getUserScopedStorageStats(userId: number): Promise<{
   storedCount: number
   uploadBytesTotal: number
@@ -316,42 +121,7 @@ export async function getUserScopedStorageStats(userId: number): Promise<{
   uploadMonth: number
   byFolder: FolderStorageStat[]
 }> {
-  let keys = await listImageKeys()
+  return getUserScopedStorageStatsFromIndex(userId)
-  keys = await filterKeysByUser(keys, userId)
-
-  const startOfDay = startOfDayIsoInShanghai()
-  const startOfMonth = startOfMonthIsoInShanghai()
-  const map = new Map<string, { count: number, bytes: number }>()
-  let uploadBytesTotal = 0
-  let uploadToday = 0
-  let uploadMonth = 0
-
-  for (const key of keys) {
-    const meta = await headImage(key)
-    if (!meta) continue
-
-    uploadBytesTotal += meta.size
-    if (meta.uploadedAt >= startOfDay) uploadToday += 1
-    if (meta.uploadedAt >= startOfMonth) uploadMonth += 1
-
-    const folder = key.split('/')[0] ?? 'unknown'
-    const current = map.get(folder) ?? { count: 0, bytes: 0 }
-    current.count += 1
-    current.bytes += meta.size
-    map.set(folder, current)
-  }
-
-  const byFolder = [...map.entries()]
-    .map(([folder, stat]) => ({ folder, ...stat }))
-    .sort((a, b) => b.bytes - a.bytes || a.folder.localeCompare(b.folder))
-
-  return {
-    storedCount: keys.length,
-    uploadBytesTotal,
-    uploadToday,
-    uploadMonth,
-    byFolder
-  }
 }
 
 export async function listImages(options: {
@@ -360,16 +130,7 @@ export async function listImages(options: {
   folder?: string
   userFilter?: number | 'admin'
 }): Promise<PaginatedResult<StoredImage>> {
-  let keys = await listImageKeys(options.folder)
+  return listImagesFromIndex(options)
-  keys = await filterKeysByUser(keys, options.userFilter)
-  const sliced = paginateSlice(keys, options.limit, options.page)
-  const items = (await Promise.all(sliced.items.map(headImage)))
-    .filter((item): item is StoredImage => item !== null)
-
-  return {
-    ...sliced,
-    items
-  }
 }
 
 export async function searchImages(options: {
@@ -379,20 +140,5 @@ export async function searchImages(options: {
   folder?: string
   userFilter?: number | 'admin'
 }): Promise<PaginatedResult<StoredImage>> {
-  const needle = options.query.trim().toLowerCase()
+  return searchImagesFromIndex(options)
-  let keys = await listImageKeys(options.folder)
-  keys = await filterKeysByUser(keys, options.userFilter)
-  const matches: StoredImage[] = []
-
-  for (const key of keys) {
-    const keyMatches = key.toLowerCase().includes(needle)
-    const item = await headImage(key)
-    if (!item) continue
-
-    if (keyMatches || item.originalName.toLowerCase().includes(needle)) {
-      matches.push(item)
-    }
-  }
-
-  return paginateSlice(matches, options.limit, options.page)
 }

server/utils/storage/index.ts

@@ -0,0 +1,3 @@
+export { getActiveBackend, getBackendForKey, getActiveBackendRow, getBackendRowForKey } from './resolver'
+export { LocalStorageBackend } from './local'
+export { S3StorageBackend, buildObjectKey, parseS3Config, validateS3Config } from './s3'

server/utils/storage/local.ts

@@ -0,0 +1,116 @@
+import { createReadStream, promises as fs } from 'node:fs'
+import type { ReadStream } from 'node:fs'
+import { dirname, join } from 'node:path'
+import { getDataDir } from '../data-dir'
+import { validateImageKey } from '../image-key'
+import type { StoredImage, StoredImageMeta, StorageBackend } from './types'
+
+const META_SUFFIX = '.meta.json'
+
+function keyToFilePath(key: string): string {
+  return join(getDataDir(), ...key.split('/'))
+}
+
+function contentTypeFromKey(key: string): string {
+  const ext = key.split('.').pop()?.toLowerCase()
+  switch (ext) {
+    case 'jpg':
+    case 'jpeg':
+      return 'image/jpeg'
+    case 'png':
+      return 'image/png'
+    case 'gif':
+      return 'image/gif'
+    case 'webp':
+      return 'image/webp'
+    case 'svg':
+      return 'image/svg+xml'
+    case 'ico':
+      return 'image/x-icon'
+    default:
+      return 'application/octet-stream'
+  }
+}
+
+async function readMeta(key: string): Promise<Partial<StoredImageMeta>> {
+  try {
+    const raw = await fs.readFile(keyToFilePath(key) + META_SUFFIX, 'utf8')
+    return JSON.parse(raw) as Partial<StoredImageMeta>
+  } catch {
+    return {}
+  }
+}
+
+export class LocalStorageBackend implements StorageBackend {
+  readonly id: string
+  readonly type = 'local' as const
+  readonly servingMode: 'proxy' | 'public'
+  readonly publicUrl: string
+
+  constructor(
+    id = 'local',
+    servingMode: 'proxy' | 'public' = 'proxy',
+    publicUrl = ''
+  ) {
+    this.id = id
+    this.servingMode = servingMode
+    this.publicUrl = publicUrl
+  }
+
+  async put(key: string, bytes: Uint8Array, meta: StoredImageMeta): Promise<void> {
+    const filePath = keyToFilePath(key)
+    await fs.mkdir(dirname(filePath), { recursive: true })
+    await fs.writeFile(filePath, bytes)
+    await fs.writeFile(filePath + META_SUFFIX, JSON.stringify(meta))
+  }
+
+  async head(key: string): Promise<StoredImage | null> {
+    if (!validateImageKey(key)) return null
+
+    let stat
+    try {
+      stat = await fs.stat(keyToFilePath(key))
+    } catch {
+      return null
+    }
+    if (!stat.isFile()) return null
+
+    const meta = await readMeta(key)
+    return {
+      key,
+      size: stat.size,
+      mtimeMs: stat.mtimeMs,
+      contentType: meta.contentType ?? contentTypeFromKey(key),
+      originalName: meta.originalName ?? key.split('/').pop() ?? 'image',
+      uploadedAt: meta.uploadedAt ?? stat.mtime.toISOString(),
+      userId: meta.userId ?? null,
+      backendId: this.id
+    }
+  }
+
+  async delete(key: string): Promise<void> {
+    const filePath = keyToFilePath(key)
+    await fs.unlink(filePath)
+    await fs.unlink(filePath + META_SUFFIX).catch(() => {})
+  }
+
+  async createStream(
+    key: string,
+    range?: { start: number, end: number }
+  ): Promise<ReadStream> {
+    return createReadStream(keyToFilePath(key), range)
+  }
+
+  async testConnection(): Promise<{ ok: boolean, message: string }> {
+    try {
+      await fs.access(getDataDir())
+      return { ok: true, message: '本地磁盘可访问' }
+    } catch {
+      return { ok: false, message: '无法访问数据目录' }
+    }
+  }
+
+  async getUsageStats(): Promise<{ count: number, bytes: number }> {
+    return { count: 0, bytes: 0 }
+  }
+}

server/utils/storage/resolver.test.ts

@@ -0,0 +1,26 @@
+import { describe, expect, it } from 'vitest'
+import { LOCAL_BACKEND_ID } from '../storage-backends'
+
+describe('storage resolver constants', () => {
+  it('uses stable local backend id', () => {
+    expect(LOCAL_BACKEND_ID).toBe('local')
+  })
+})
+
+describe('default backend routing', () => {
+  it('returns local when no env override and local is default', async () => {
+    const original = process.env.STORAGE_BACKEND
+    delete process.env.STORAGE_BACKEND
+
+    const { setDefaultBackend, LOCAL_BACKEND_ID } = await import('../storage-backends')
+    setDefaultBackend(LOCAL_BACKEND_ID)
+
+    const { getActiveBackend } = await import('./resolver')
+    const backend = await getActiveBackend()
+    expect(backend.type).toBe('local')
+
+    if (original !== undefined) {
+      process.env.STORAGE_BACKEND = original
+    }
+  })
+})

server/utils/storage/resolver.ts

@@ -0,0 +1,115 @@
+import {
+  createBackendFromEnv,
+  createBackendInstance,
+  getBackendIdForKey,
+  getDefaultBackendRow,
+  getStorageBackendRow,
+  LOCAL_BACKEND_ID,
+  ensureDefaultBackends
+} from '../storage-backends'
+import type { StorageBackend, StorageBackendRow } from './types'
+
+export async function getActiveBackend(): Promise<StorageBackend> {
+  const fromEnv = createBackendFromEnv()
+  if (fromEnv) return fromEnv
+
+  ensureDefaultBackends()
+  const row = getDefaultBackendRow()
+  if (!row) {
+    return createBackendInstance({
+      id: LOCAL_BACKEND_ID,
+      name: '本地磁盘',
+      type: 'local',
+      config_json: '{}',
+      secret_json: '{}',
+      serving_mode: 'proxy',
+      public_url: '',
+      quota_bytes: null,
+      enabled: 1,
+      is_default: 1,
+      sort_order: 0
+    })
+  }
+
+  return createBackendInstance(row)
+}
+
+export async function getBackendForKey(key: string): Promise<StorageBackend> {
+  const fromEnv = createBackendFromEnv()
+  if (fromEnv) return fromEnv
+
+  ensureDefaultBackends()
+  const backendId = getBackendIdForKey(key) ?? LOCAL_BACKEND_ID
+  const row = getStorageBackendRow(backendId)
+
+  if (!row || !row.enabled) {
+    return createBackendInstance(fallbackLocalRow())
+  }
+
+  try {
+    return createBackendInstance(row)
+  } catch {
+    return createBackendInstance(fallbackLocalRow())
+  }
+}
+
+export function getActiveBackendRow(): StorageBackendRow | null {
+  const fromEnv = createBackendFromEnv()
+  if (fromEnv) {
+    return {
+      id: fromEnv.id,
+      name: 'S3 (环境变量)',
+      type: 's3',
+      config_json: '{}',
+      secret_json: '{}',
+      serving_mode: fromEnv.servingMode,
+      public_url: fromEnv.publicUrl,
+      quota_bytes: null,
+      enabled: 1,
+      is_default: 1,
+      sort_order: 0
+    }
+  }
+
+  ensureDefaultBackends()
+  return getDefaultBackendRow()
+}
+
+export async function getBackendRowForKey(key: string): Promise<StorageBackendRow> {
+  const fromEnv = createBackendFromEnv()
+  if (fromEnv) {
+    return {
+      id: fromEnv.id,
+      name: 'S3 (环境变量)',
+      type: 's3',
+      config_json: '{}',
+      secret_json: '{}',
+      serving_mode: fromEnv.servingMode,
+      public_url: fromEnv.publicUrl,
+      quota_bytes: null,
+      enabled: 1,
+      is_default: 1,
+      sort_order: 0
+    }
+  }
+
+  ensureDefaultBackends()
+  const backendId = getBackendIdForKey(key) ?? LOCAL_BACKEND_ID
+  return getStorageBackendRow(backendId) ?? fallbackLocalRow()
+}
+
+function fallbackLocalRow(): StorageBackendRow {
+  return {
+    id: LOCAL_BACKEND_ID,
+    name: '本地磁盘',
+    type: 'local',
+    config_json: '{}',
+    secret_json: '{}',
+    serving_mode: 'proxy',
+    public_url: '',
+    quota_bytes: null,
+    enabled: 1,
+    is_default: 1,
+    sort_order: 0
+  }
+}

server/utils/storage/s3.test.ts

@@ -0,0 +1,45 @@
+import { describe, expect, it } from 'vitest'
+import { buildObjectKey, parseS3Config, validateS3Config } from './s3'
+
+describe('S3 backend helpers', () => {
+  it('buildObjectKey joins prefix and key', () => {
+    expect(buildObjectKey('pichost', 'images/2026/01/a.webp')).toBe(
+      'pichost/images/2026/01/a.webp'
+    )
+    expect(buildObjectKey(undefined, 'images/a.webp')).toBe('images/a.webp')
+    expect(buildObjectKey('/pichost/', 'images/a.webp')).toBe('pichost/images/a.webp')
+  })
+
+  it('parseS3Config requires endpoint, region and bucket', () => {
+    expect(parseS3Config('{}')).toBeNull()
+    expect(parseS3Config(JSON.stringify({
+      endpoint: 'https://example.r2.cloudflarestorage.com',
+      region: 'auto',
+      bucket: 'pics'
+    }))).toEqual({
+      endpoint: 'https://example.r2.cloudflarestorage.com',
+      region: 'auto',
+      bucket: 'pics',
+      prefix: undefined,
+      forcePathStyle: false
+    })
+  })
+
+  it('validateS3Config rejects invalid endpoint', () => {
+    expect(validateS3Config({
+      endpoint: 'not-a-url',
+      region: 'auto',
+      bucket: 'pics'
+    })).toBeTruthy()
+    expect(validateS3Config({
+      endpoint: 'https://example.com',
+      region: 'auto',
+      bucket: ''
+    })).toBeTruthy()
+    expect(validateS3Config({
+      endpoint: 'https://example.com',
+      region: 'auto',
+      bucket: 'pics'
+    })).toBeNull()
+  })
+})

server/utils/storage/s3.ts

@@ -0,0 +1,218 @@
+import {
+  DeleteObjectCommand,
+  GetObjectCommand,
+  HeadBucketCommand,
+  HeadObjectCommand,
+  PutObjectCommand,
+  S3Client
+} from '@aws-sdk/client-s3'
+import type { Readable } from 'node:stream'
+import { validateImageKey } from '../image-key'
+import type {
+  S3BackendConfig,
+  S3BackendSecrets,
+  ServingMode,
+  StoredImage,
+  StoredImageMeta,
+  StorageBackend
+} from './types'
+
+function contentTypeFromKey(key: string): string {
+  const ext = key.split('.').pop()?.toLowerCase()
+  switch (ext) {
+    case 'jpg':
+    case 'jpeg':
+      return 'image/jpeg'
+    case 'png':
+      return 'image/png'
+    case 'gif':
+      return 'image/gif'
+    case 'webp':
+      return 'image/webp'
+    case 'svg':
+      return 'image/svg+xml'
+    case 'ico':
+      return 'image/x-icon'
+    default:
+      return 'application/octet-stream'
+  }
+}
+
+export function buildObjectKey(prefix: string | undefined, key: string): string {
+  const trimmed = prefix?.replace(/^\/+|\/+$/g, '') ?? ''
+  return trimmed ? `${trimmed}/${key}` : key
+}
+
+export function parseS3Config(raw: string): S3BackendConfig | null {
+  try {
+    const parsed = JSON.parse(raw) as Partial<S3BackendConfig>
+    if (!parsed.endpoint || !parsed.region || !parsed.bucket) return null
+    return {
+      endpoint: parsed.endpoint,
+      region: parsed.region,
+      bucket: parsed.bucket,
+      prefix: parsed.prefix,
+      forcePathStyle: parsed.forcePathStyle ?? false
+    }
+  } catch {
+    return null
+  }
+}
+
+export function parseS3Secrets(raw: string): S3BackendSecrets | null {
+  try {
+    const parsed = JSON.parse(raw) as Partial<S3BackendSecrets>
+    if (!parsed.accessKeyId || !parsed.secretAccessKey) return null
+    return {
+      accessKeyId: parsed.accessKeyId,
+      secretAccessKey: parsed.secretAccessKey
+    }
+  } catch {
+    return null
+  }
+}
+
+export function validateS3Config(config: S3BackendConfig): string | null {
+  if (!config.endpoint.startsWith('http')) {
+    return 'Endpoint 需为 http(s) 地址'
+  }
+  if (!config.bucket.trim()) {
+    return 'Bucket 不能为空'
+  }
+  return null
+}
+
+export class S3StorageBackend implements StorageBackend {
+  readonly id: string
+  readonly type = 's3' as const
+  readonly servingMode: ServingMode
+  readonly publicUrl: string
+  private readonly client: S3Client
+  private readonly bucket: string
+  private readonly prefix: string | undefined
+
+  constructor(
+    id: string,
+    config: S3BackendConfig,
+    secrets: S3BackendSecrets,
+    servingMode: ServingMode = 'proxy',
+    publicUrl = ''
+  ) {
+    this.id = id
+    this.servingMode = servingMode
+    this.publicUrl = publicUrl
+    this.bucket = config.bucket
+    this.prefix = config.prefix
+    this.client = new S3Client({
+      endpoint: config.endpoint,
+      region: config.region,
+      credentials: {
+        accessKeyId: secrets.accessKeyId,
+        secretAccessKey: secrets.secretAccessKey
+      },
+      forcePathStyle: config.forcePathStyle ?? false
+    })
+  }
+
+  private objectKey(key: string): string {
+    return buildObjectKey(this.prefix, key)
+  }
+
+  async put(key: string, bytes: Uint8Array, meta: StoredImageMeta): Promise<void> {
+    await this.client.send(new PutObjectCommand({
+      Bucket: this.bucket,
+      Key: this.objectKey(key),
+      Body: bytes,
+      ContentType: meta.contentType,
+      Metadata: {
+        originalName: meta.originalName,
+        uploadedAt: meta.uploadedAt,
+        userId: meta.userId != null ? String(meta.userId) : ''
+      }
+    }))
+  }
+
+  async head(key: string): Promise<StoredImage | null> {
+    if (!validateImageKey(key)) return null
+
+    try {
+      const response = await this.client.send(new HeadObjectCommand({
+        Bucket: this.bucket,
+        Key: this.objectKey(key)
+      }))
+
+      const uploadedAt = response.Metadata?.uploadedat
+        ?? response.LastModified?.toISOString()
+        ?? new Date().toISOString()
+      const originalName = response.Metadata?.originalname
+        ?? key.split('/').pop()
+        ?? 'image'
+      const userIdRaw = response.Metadata?.userid
+      const userId = userIdRaw ? Number(userIdRaw) : null
+
+      return {
+        key,
+        size: response.ContentLength ?? 0,
+        mtimeMs: response.LastModified?.getTime() ?? Date.now(),
+        contentType: response.ContentType ?? contentTypeFromKey(key),
+        originalName,
+        uploadedAt,
+        userId: Number.isFinite(userId) ? userId : null,
+        backendId: this.id
+      }
+    } catch {
+      return null
+    }
+  }
+
+  async delete(key: string): Promise<void> {
+    await this.client.send(new DeleteObjectCommand({
+      Bucket: this.bucket,
+      Key: this.objectKey(key)
+    }))
+  }
+
+  async createStream(
+    key: string,
+    range?: { start: number, end: number }
+  ): Promise<Readable> {
+    const response = await this.client.send(new GetObjectCommand({
+      Bucket: this.bucket,
+      Key: this.objectKey(key),
+      Range: range ? `bytes=${range.start}-${range.end}` : undefined
+    }))
+
+    if (!response.Body) {
+      throw new Error('Empty S3 response body')
+    }
+
+    return response.Body as Readable
+  }
+
+  async testConnection(): Promise<{ ok: boolean, message: string }> {
+    const probeKey = `__pichost-probe-${Date.now()}.txt`
+    const probeBytes = new TextEncoder().encode('pichost-probe')
+
+    try {
+      await this.client.send(new HeadBucketCommand({ Bucket: this.bucket }))
+      await this.client.send(new PutObjectCommand({
+        Bucket: this.bucket,
+        Key: buildObjectKey(this.prefix, probeKey),
+        Body: probeBytes,
+        ContentType: 'text/plain'
+      }))
+      await this.client.send(new DeleteObjectCommand({
+        Bucket: this.bucket,
+        Key: buildObjectKey(this.prefix, probeKey)
+      }))
+      return { ok: true, message: '连接成功' }
+    } catch (error) {
+      const message = error instanceof Error ? error.message : '连接失败'
+      return { ok: false, message }
+    }
+  }
+
+  async getUsageStats(): Promise<{ count: number, bytes: number }> {
+    return { count: 0, bytes: 0 }
+  }
+}

server/utils/storage/types.ts

@@ -0,0 +1,85 @@
+import type { Readable } from 'node:stream'
+
+export interface StoredImageMeta {
+  originalName: string
+  uploadedAt: string
+  contentType: string
+  size: number
+  userId?: number | null
+}
+
+export interface StoredImage extends StoredImageMeta {
+  key: string
+  mtimeMs: number
+  backendId?: string
+}
+
+export interface PaginatedResult<T> {
+  items: T[]
+  total: number
+  page: number
+  pageSize: number
+  totalPages: number
+}
+
+export interface FolderStorageStat {
+  folder: string
+  count: number
+  bytes: number
+}
+
+export type StorageBackendType = 'local' | 's3'
+export type ServingMode = 'proxy' | 'public'
+
+export interface S3BackendConfig {
+  endpoint: string
+  region: string
+  bucket: string
+  prefix?: string
+  forcePathStyle?: boolean
+}
+
+export interface S3BackendSecrets {
+  accessKeyId: string
+  secretAccessKey: string
+}
+
+export interface StorageBackendRow {
+  id: string
+  name: string
+  type: StorageBackendType
+  config_json: string
+  secret_json: string
+  serving_mode: ServingMode
+  public_url: string
+  quota_bytes: number | null
+  enabled: number
+  is_default: number
+  sort_order: number
+}
+
+export interface StorageBackendInfo {
+  id: string
+  name: string
+  type: StorageBackendType
+  config: S3BackendConfig | Record<string, never>
+  servingMode: ServingMode
+  publicUrl: string
+  quotaBytes: number | null
+  enabled: boolean
+  isDefault: boolean
+  sortOrder: number
+}
+
+export interface StorageBackend {
+  readonly id: string
+  readonly type: StorageBackendType
+  readonly servingMode: ServingMode
+  readonly publicUrl: string
+  put(key: string, bytes: Uint8Array, meta: StoredImageMeta): Promise<void>
+  head(key: string): Promise<StoredImage | null>
+  delete(key: string): Promise<void>
+  createStream(key: string, range?: { start: number, end: number }): Promise<Readable>
+  testConnection(): Promise<{ ok: boolean, message: string }>
+  getUsageStats(): Promise<{ count: number, bytes: number }>
+}

vitest.config.ts

@@ -3,6 +3,6 @@ import { defineConfig } from 'vitest/config'
 export default defineConfig({
   test: {
     environment: 'node',
-    include: ['server/**/*.test.ts']
+    include: ['server/**/*.test.ts', 'scripts/**/*.test.ts']
   }
 })