feat(admin): photo upload in album photos tab (same staging pipeline as app)

- 照片页签工具栏加「上传照片」（多选 jpeg/png/heic）→ /v1/uploads
  init → PUT staging → complete（clientTaskId 幂等；categoryId 随当前分类筛选）
- 逐张结果：部分成功语义（成功 N 张 toast + 失败明细前 3 条）；完成后 reload
- 类型 UploadInitPayload/UploadSession/UploadCompleteResponse + api/uploads.ts
- 问题1 修复说明：详情页 404 系并行部署把 2618ad3 server 覆盖回 8e674a9，
  已重滚双栈至 ui06-2618ad3（assets 端点恢复 200，详情页零失败请求）

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

apps/admin/src/locales/langs/en.json

@@ -503,7 +503,11 @@
       "batchColReason": "Reason",
       "view": "Details",
       "selectedCount": "{n} selected",
-      "onlyPublicSelectable": "Only published photos can be selected"
+      "onlyPublicSelectable": "Only published photos can be selected",
+      "upload": "Upload photos",
+      "uploadBadType": "unsupported type",
+      "uploadResult": "Uploaded: {ok} ok, {fail} failed",
+      "uploadResultAllOk": "Uploaded {ok}; visible when processed"
     },
     "transfer": {
       "entry": "Transfer Owner",

apps/admin/src/locales/langs/zh.json

@@ -503,7 +503,11 @@
       "batchColReason": "原因",
       "view": "详情",
       "selectedCount": "{n} 张已选",
-      "onlyPublicSelectable": "仅已公开照片可批量选择"
+      "onlyPublicSelectable": "仅已公开照片可批量选择",
+      "upload": "上传照片",
+      "uploadBadType": "类型不支持",
+      "uploadResult": "上传完成：成功 {ok} 张，失败 {fail} 张",
+      "uploadResultAllOk": "已上传 {ok} 张，处理完成后显示"
     },
     "transfer": {
       "entry": "负责人交接",