refactor(chat): remove redundant auth state management from ChatScreen documentation

refactor(chat): update guest chat quota logic to use isProduction utility
fix(user): add TODO for user initialization event on login status change

src/stores/user/user-auth-sync.tsx

@@ -19,6 +19,7 @@ export function UserAuthSync() {
   const userDispatch = useUserDispatch();
   const lastInitializedStatusRef = useRef<string | null>(null);
 
+  //TODO 在测位栏界面监听变化，监听登录状态的变化若发生变化，则需要分发 user init 事件
   useEffect(() => {
     if (loginStatus === "notLoggedIn" || loginStatus === "guest") {
       lastInitializedStatusRef.current = null;