Fix/storage retention cleanup (#2159)

* fix: add storage retention cleanup

* fix: prune completed tasks on completion

* fix: complete storage analysis i18n

web/src/i18n/locales/zh-Hant.ts

@@ -1171,6 +1171,31 @@ const zhHant = {
       feedback: '使用者回饋',
     },
   },
+  storageAnalysis: {
+    title: '儲存分析',
+    description: '查看儲存占用和可清理檔案',
+    openDialog: '查看分析',
+    dialogTitle: '儲存分析',
+    generatedAt: '生成時間 {{time}}',
+    loading: '載入中...',
+    refresh: '重新整理',
+    totalSize: '總占用',
+    binaryStorage: '插件二進位儲存',
+    uploadCleanup: '過期上傳檔案',
+    logCleanup: '過期日誌',
+    sections: '儲存分區',
+    monitoringTables: '監控表',
+    runtimeTasks: '執行任務',
+    sectionNames: {
+      database: '資料庫',
+      logs: '日誌',
+      storage: '上傳檔案',
+      vector_store: '向量庫',
+      plugins: '插件',
+      mcp: 'MCP',
+      temp: '暫存檔案',
+    },
+  },
   limitation: {
     maxBotsReached:
       '已達到機器人數量上限（{{max}}個）。請先刪除已有機器人後再建立新的。',