fix(database): respect Workers PBKDF2 iteration limit

public/locales/en.json

@@ -35,6 +35,7 @@
     "connected": "Connected to your account's records.",
     "sessionExpired": "The database session expired. Sign in again.",
     "requestFailed": "Database request failed.",
+    "unexpectedResponse": "The database server returned an unexpected response. Please retry in a moment.",
     "ownData": "CURRENT ACCOUNT ONLY",
     "directMode": "Direct record editor · changes are saved to D1",
     "logout": "Log out",

public/locales/zh-CN.json

@@ -35,6 +35,7 @@
     "connected": "已连接当前账号的记录。",
     "sessionExpired": "数据库会话已过期，请重新登录。",
     "requestFailed": "数据库请求失败。",
+    "unexpectedResponse": "数据库服务器返回了异常响应，请稍后重试。",
     "ownData": "仅当前账号",
     "directMode": "直接编辑记录 · 修改写入 D1",
     "logout": "退出登录",