refactor(dto): move app models into dto layer

src/data/dto/auth/auth_mode.ts

@@ -0,0 +1,11 @@
+/**
+ * 认证模式（登录 / 注册）
+ *
+ * 原始 Dart: lib/ui/auth/model/auth_mode.dart
+ */
+export const AuthMode = {
+  Login: "login",
+  Register: "register",
+} as const;
+
+export type AuthMode = (typeof AuthMode)[keyof typeof AuthMode];

src/data/dto/auth/auth_panel_mode.ts

@@ -0,0 +1,12 @@
+/**
+ * 认证面板模式（Facebook / Email）
+ *
+ * 原始 Dart: lib/ui/auth/model/auth_panel_mode.dart
+ */
+export const AuthPanelMode = {
+  Facebook: "facebook",
+  Email: "email",
+} as const;
+
+export type AuthPanelMode =
+  (typeof AuthPanelMode)[keyof typeof AuthPanelMode];

src/data/dto/auth/index.ts

@@ -3,12 +3,15 @@
  */
 
 export * from "./apple_login_request";
+export * from "./auth_mode";
+export * from "./auth_panel_mode";
 export * from "./facebook_login_request";
 export * from "./facebook_user_data";
 export * from "./fb_id_login_request";
 export * from "./google_login_request";
 export * from "./guest_login_request";
 export * from "./guest_login_response";
+export * from "./login_status";
 export * from "./login_request";
 export * from "./login_response";
 export * from "./logout_response";

src/data/dto/auth/login_status.ts

@@ -0,0 +1,19 @@
+/**
+ * 登录状态枚举
+ */
+export const LoginStatus = {
+  /** 未登录（默认初值） */
+  NotLoggedIn: "notLoggedIn",
+  /** 游客登录 */
+  Guest: "guest",
+  /** Facebook OAuth 登录 */
+  Facebook: "facebook",
+  /** Google OAuth 登录 */
+  Google: "google",
+  /** 邮箱 + 密码登录 */
+  Email: "email",
+  /** Apple ID 登录 */
+  Apple: "apple",
+} as const;
+
+export type LoginStatus = (typeof LoginStatus)[keyof typeof LoginStatus];