fix(chat): redirect unauthenticated users from chat

src/stores/auth/auth-state.ts

@@ -15,6 +15,8 @@ export interface AuthState {
   errorMessage: string | null;
   /** 当前登录状态（未登录 / 游客 / OAuth / 邮箱） */
   loginStatus: LoginStatus;
+  /** 启动时的本地登录态恢复是否已经完成 */
+  hasInitialized: boolean;
   /**
    * 一次性的"刚按了"信号 —— Skip / Facebook / 邮箱登录按钮刚派事件 → 置 true
    *   → splash-screen / auth-screen 看到 `pendingRedirect && loginStatus !== "notLoggedIn"` 触发跳转
@@ -35,5 +37,6 @@ export const initialState: AuthState = {
   confirmPassword: "",
   errorMessage: null,
   loginStatus: "notLoggedIn",
+  hasInitialized: false,
   pendingRedirect: false,
 };