feat: activity logs, gallery storage filter, and upload rate limits

Add per-user activity logs with storage backend tracking, gallery
storage filter, and IP/token upload rate limiting. Fix storage delete
modal flash, pin local backend in filter order, and link settings
version to GitHub releases.

i18n/locales/en.json

@@ -24,6 +24,7 @@
   "nav": {
     "api": "API",
     "stats": "Stats",
+    "logs": "Activity log",
     "settings": "Settings",
     "storage": "Storage",
     "menu": "Menu",
@@ -186,7 +187,8 @@
     "tokenEnv": "Environment",
     "tokenDb": "Generated in app",
     "tokenNone": "Not configured",
-    "apiTokenLine": "API Token · {source} · v{version}",
+    "apiTokenLine": "API Token · {source} ·",
+    "viewReleases": "View releases",
     "unsavedChanges": "Unsaved changes",
     "manageToken": "Manage token",
     "envOverride": "Overridden by environment variable; cannot edit in UI",
@@ -292,6 +294,8 @@
     "folderCount": "{count} · {size}",
     "gallery": "Gallery",
     "folder": "Folder",
+    "filterStorageAll": "All storage",
+    "storage": "Storage",
     "searchPlaceholder": "Search filename",
     "clear": "Clear",
     "selected": "{n} selected",
@@ -306,12 +310,42 @@
     "allFolders": "All",
     "counting": "Counting…",
     "summarySearch": "{folder} · Search “{q}” · {total} images",
-    "summaryTotal": "{folder} · {total} images"
+    "summaryTotal": "{folder} · {total} images",
+    "summarySearchStorage": "{folder} · {storage} · Search “{q}” · {total} images",
+    "summaryTotalStorage": "{folder} · {storage} · {total} images"
+  },
+  "logs": {
+    "pageTitle": "Activity log",
+    "pageSubtitle": "Your upload and delete history",
+    "pageSubtitleAdmin": "Upload and delete history for all users",
+    "loadFailed": "Failed to load activity log",
+    "empty": "No activity yet",
+    "entriesUnit": "entries",
+    "filterActionAll": "All actions",
+    "filterSourceAll": "All sources",
+    "filterUserAll": "All users",
+    "searchPlaceholder": "Search filename",
+    "summaryAll": "All · {total} entries, {upload} uploads, {delete} deletes",
+    "actionUpload": "Upload",
+    "actionDelete": "Delete",
+    "sourceWeb": "Web",
+    "sourceApi": "API",
+    "sourceTwikoo": "Twikoo",
+    "colTime": "Time",
+    "colUser": "User",
+    "colStorage": "Storage",
+    "colAction": "Action",
+    "colSource": "Source",
+    "colFile": "File",
+    "colFolder": "Folder",
+    "colSize": "Size",
+    "colKey": "Path"
   },
   "image": {
     "empty": "No images",
     "previewFailed": "Preview failed",
-    "uploader": "Uploader: {name}"
+    "uploader": "Uploader: {name}",
+    "storageBackend": "Storage: {name}"
   },
   "delete": {
     "confirmTitle": "Confirm delete",

i18n/locales/zh-CN.json

@@ -24,6 +24,7 @@
   "nav": {
     "api": "API",
     "stats": "统计",
+    "logs": "操作日志",
     "settings": "设置",
     "storage": "存储",
     "menu": "菜单",
@@ -186,7 +187,8 @@
     "tokenEnv": "环境变量",
     "tokenDb": "后台生成",
     "tokenNone": "未配置",
-    "apiTokenLine": "API Token · {source} · v{version}",
+    "apiTokenLine": "API Token · {source} ·",
+    "viewReleases": "查看发行版",
     "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",
@@ -292,6 +294,8 @@
     "folderCount": "{count} 张 · {size}",
     "gallery": "图库记录",
     "folder": "目录",
+    "filterStorageAll": "全部存储",
+    "storage": "存储",
     "searchPlaceholder": "搜索文件名",
     "clear": "清除",
     "selected": "已选 {n}",
@@ -306,12 +310,42 @@
     "allFolders": "全部",
     "counting": "统计中…",
     "summarySearch": "{folder} · 搜索「{q}」· 共 {total} 张",
-    "summaryTotal": "{folder} · 共 {total} 张"
+    "summaryTotal": "{folder} · 共 {total} 张",
+    "summarySearchStorage": "{folder} · {storage} · 搜索「{q}」· 共 {total} 张",
+    "summaryTotalStorage": "{folder} · {storage} · 共 {total} 张"
+  },
+  "logs": {
+    "pageTitle": "操作日志",
+    "pageSubtitle": "查看您的上传与删除记录",
+    "pageSubtitleAdmin": "查看所有用户的上传与删除记录",
+    "loadFailed": "加载操作日志失败",
+    "empty": "暂无操作记录",
+    "entriesUnit": "条记录",
+    "filterActionAll": "全部操作",
+    "filterSourceAll": "全部来源",
+    "filterUserAll": "全部用户",
+    "searchPlaceholder": "搜索文件名",
+    "summaryAll": "全部 · 共 {total} 条记录，上传 {upload} 条，删除 {delete} 条",
+    "actionUpload": "上传",
+    "actionDelete": "删除",
+    "sourceWeb": "网页",
+    "sourceApi": "API",
+    "sourceTwikoo": "Twikoo",
+    "colTime": "时间",
+    "colUser": "用户",
+    "colStorage": "存储",
+    "colAction": "操作",
+    "colSource": "来源",
+    "colFile": "文件名",
+    "colFolder": "目录",
+    "colSize": "大小",
+    "colKey": "路径"
   },
   "image": {
     "empty": "暂无图片",
     "previewFailed": "预览失败",
-    "uploader": "上传者：{name}"
+    "uploader": "上传者：{name}",
+    "storageBackend": "存储：{name}"
   },
   "delete": {
     "confirmTitle": "确认删除",