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];

src/data/dto/chat/chat_list_item.ts

@@ -0,0 +1,28 @@
+/**
+ * 聊天列表项 discriminated union
+ *
+ * 原始 Dart: lib/ui/chat/models/chat_list_item.dart
+ *
+ * 4 种类型：
+ *   - ai-disclosure：顶部 AI 披露横幅
+ *   - date-separator：日期分隔条
+ *   - loading-animation：AI 正在输入的动画
+ *   - message：实际消息
+ */
+import type { UiMessage } from "./ui_message";
+
+export type ChatListItem =
+  | { type: "ai-disclosure" }
+  | { type: "date-separator"; date: string }
+  | { type: "loading-animation" }
+  | { type: "message"; message: UiMessage; key: string };
+
+export const ChatListItemType = {
+  AiDisclosure: "ai-disclosure",
+  DateSeparator: "date-separator",
+  LoadingAnimation: "loading-animation",
+  Message: "message",
+} as const;
+
+export type ChatListItemType =
+  (typeof ChatListItemType)[keyof typeof ChatListItemType];

src/data/dto/chat/index.ts

@@ -3,6 +3,7 @@
  */
 
 export * from "./chat_history_response";
+export * from "./chat_list_item";
 export * from "./chat_message";
 export * from "./chat_send_response";
 export * from "./chat_sync_data";
@@ -12,3 +13,4 @@ export * from "./image_upload_response";
 export * from "./send_message_request";
 export * from "./stt_data";
 export * from "./sync_message";
+export * from "./ui_message";

src/data/dto/chat/ui_message.ts

@@ -0,0 +1,36 @@
+/**
+ * 聊天 UI 消息模型
+ *
+ * 原始 Dart: lib/ui/chat/models/message.dart（freezed + json_serializable 生成）
+ *
+ * 字段：content、isFromAI、date、imageUrl（可选）、voiceUrl（可选）
+ */
+import { z } from "zod";
+
+export const UiMessageSchema = z.object({
+  content: z.string(),
+  isFromAI: z.boolean(),
+  /** 显示用时间戳（HH:mm） */
+  date: z.string(),
+  /** 图片 URL（base64 data URL 或 http URL） */
+  imageUrl: z.string().optional(),
+  /** 语音 URL */
+  voiceUrl: z.string().optional(),
+});
+
+export type UiMessage = z.infer<typeof UiMessageSchema>;
+
+/** 工厂函数（替代 Dart `UiMessage(content:..., isFromAI:...)` 构造）。 */
+export const UiMessage = {
+  create(input: Omit<UiMessage, "date"> & { date?: string }): UiMessage {
+    return UiMessageSchema.parse({
+      ...input,
+      date:
+        input.date ??
+        new Date().toLocaleTimeString([], {
+          hour: "2-digit",
+          minute: "2-digit",
+        }),
+    });
+  },
+};

src/data/dto/user/index.ts

@@ -10,3 +10,4 @@ export * from "./recent_memory";
 export * from "./update_profile_request";
 export * from "./user";
 export * from "./user_stats_response";
+export * from "./user_view";

src/data/dto/user/user_view.ts

@@ -0,0 +1,23 @@
+/**
+ * UI 侧用户模型（基于 data/dto/user/user + user_storage 重新导出 view-model）
+ *
+ * 原始 Dart: lib/data/models/user/user.dart
+ */
+import { z } from "zod";
+
+export const UserViewSchema = z.object({
+  id: z.string(),
+  username: z.string(),
+  email: z.string(),
+  avatarUrl: z.string(),
+  intimacy: z.number(),
+  dolBalance: z.number(),
+  relationshipStage: z.string(),
+  currentMood: z.string(),
+  isGuest: z.boolean(),
+  isVip: z.boolean(),
+  voiceMinutesRemaining: z.number(),
+  stripeCustomerId: z.string().nullable(),
+});
+
+export type UserView = z.infer<typeof UserViewSchema>;