feat(viewer): photo viewer with zoom, navigation and deep link

Co-Authored-By: Claude Code <noreply@anthropic.com>

apps/viewer/src/i18n/locales/en.ts

@@ -14,6 +14,18 @@ export default {
     retry: 'Retry',
   },
   lang: { switch: 'Switch language' },
+  viewer: {
+    title: 'Photo viewer',
+    close: 'Close',
+    previous: 'Previous photo',
+    next: 'Next photo',
+    counter: '{current} / {total}',
+    likeCount: '{count} likes',
+    loadFailed: 'Failed to load image',
+    // PHOTO_NOT_PUBLIC 专用：not found / unpublished / hidden share one code (anti-enumeration).
+    photoUnavailable: 'Photo not found or unavailable',
+    backToAlbum: 'Back to album',
+  },
   route: { tokenLabel: 'Album token', photoLabel: 'Photo' },
   errors: {
     albumNotFound: 'Album not found',

apps/viewer/src/i18n/locales/zh-CN.ts

@@ -14,6 +14,19 @@ export default {
     retry: '重试',
   },
   lang: { switch: '切换语言' },
+  viewer: {
+    title: '照片查看',
+    close: '关闭',
+    previous: '上一张',
+    next: '下一张',
+    counter: '{current} / {total}',
+    likeCount: '{count} 次点赞',
+    loadFailed: '图片加载失败',
+    photoRemoved: '照片已被移除',
+    // PHOTO_NOT_PUBLIC 专用：不存在/未发布/已隐藏同码（防枚举），文案覆盖两种成因。
+    photoUnavailable: '照片不存在或已下线',
+    backToAlbum: '返回相册',
+  },
   route: { tokenLabel: '相册令牌', photoLabel: '照片' },
   errors: {
     albumNotFound: '相册不存在',