release: v1.2.1 — login captcha, docs site, and bug fixes

Add slider captcha for web login, VitePress documentation on GitHub Pages,
and fixes for gallery delete refresh, pagination jump, and copy-format persistence.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "pichost",
-  "version": "1.2.0",
+  "version": "1.2.1",
   "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": {
@@ -34,7 +34,11 @@
     "test:watch": "vitest",
     "start": "node .output/server/index.mjs",
     "reset-password": "node server/cli/reset-password.mjs",
-    "migrate": "node server/cli/migrate-to-single-images.mjs"
+    "migrate": "node server/cli/migrate-to-single-images.mjs",
+    "docs:prepare": "node docs-site/copy-screenshots.mjs",
+    "docs:dev": "npm run docs:prepare && vitepress dev docs-site",
+    "docs:build": "npm run docs:prepare && vitepress build docs-site",
+    "docs:preview": "npm run docs:prepare && vitepress preview docs-site"
   },
   "dependencies": {
     "@aws-sdk/client-s3": "^3.876.0",
@@ -50,6 +54,7 @@
     "@types/node": "^22.15.0",
     "eslint": "^10.6.0",
     "typescript": "^6.0.3",
+    "vitepress": "^1.6.4",
     "vitest": "^3.2.4",
     "vue-tsc": "^3.3.5"
   }