release: v1.4.0 — 标签系统、操作日志扩展与文档截图更新

- 每用户标签与彩色打标，图库 OR/AND 筛选与批量打标
- 操作日志记录登录、删除、设置与标签操作
- API 标签/打标接口；README 与文档站截图同步

app/components/settings/SettingsSystemInfo.vue

@@ -4,32 +4,64 @@ defineProps<{
   updateAvailable: boolean
   latestVersion: string | null
   releaseUrl: string | null
+  checking: boolean
+}>()
+
+const emit = defineEmits<{
+  checkUpdate: []
 }>()
 
 const { t } = useI18n()
 </script>
 
 <template>
-  <div class="pl-3">
-    <div class="flex flex-wrap items-center gap-2">
-      <span class="text-sm font-medium text-highlighted">
+  <div class="flex flex-wrap items-center justify-between gap-4 py-4">
+    <div class="min-w-0">
+      <p class="text-sm font-medium text-highlighted">
         {{ t('settings.systemVersion') }}
+      </p>
+      <p class="mt-1 text-xs leading-relaxed text-muted">
+        {{ t('settings.systemVersionHint') }}
+      </p>
+    </div>
+    <div class="flex flex-wrap items-center gap-2">
+      <span class="text-sm font-medium tabular-nums text-highlighted">
+        v{{ appVersion }}
       </span>
       <UBadge
-        color="neutral"
+        v-if="updateAvailable && latestVersion"
+        color="warning"
         variant="subtle"
         size="sm"
       >
-        v{{ appVersion }}
+        {{ t('settings.updateAvailable', { version: `v${latestVersion}` }) }}
       </UBadge>
+      <UBadge
+        v-else
+        color="success"
+        variant="subtle"
+        size="sm"
+      >
+        {{ t('settings.upToDate') }}
+      </UBadge>
+      <UButton
+        :label="t('settings.checkUpdate')"
+        icon="i-lucide-refresh-cw"
+        variant="outline"
+        color="neutral"
+        size="sm"
+        class="shrink-0"
+        :loading="checking"
+        @click="emit('checkUpdate')"
+      />
       <a
         v-if="updateAvailable && latestVersion"
         :href="releaseUrl || 'https://github.com/O96u/PicHost/releases'"
         target="_blank"
         rel="noopener noreferrer"
-        class="text-xs text-warning hover:underline"
+        class="text-xs text-primary hover:underline"
       >
-        {{ t('settings.updateAvailable', { version: `v${latestVersion}` }) }}
+        {{ t('settings.viewReleases') }}
       </a>
     </div>
   </div>