refactor(data): replace schema classes with readonly models

src/data/schemas/chat/response/chat_send_response.ts

@@ -1,6 +1,6 @@
 /**
  * 发送消息响应
- * 
+ *
  */
 import { z } from "zod";
 import {
@@ -10,60 +10,27 @@ import {
   numberOrZero,
   stringOrEmpty,
 } from "../../nullable-defaults";
-import {
-  ChatImageSchema,
-  ChatLockDetailSchema,
-  type ChatImageData,
-  type ChatLockDetailData,
-} from "../chat_payloads";
+import { ChatImageSchema, ChatLockDetailSchema } from "../chat_payloads";
 
-export const ChatSendResponseSchema = z.object({
-  reply: stringOrEmpty,
-  audioUrl: stringOrEmpty,
-  messageId: stringOrEmpty,
-  isGuest: booleanOrFalse,
-  // 函数式 default —— 每次 parse 时重新调 Date.now()（后端不返回 timestamp 时用当下时间）
-  timestamp: numberOrLazy(() => Date.now()),
-  image: ChatImageSchema,
-  lockDetail: ChatLockDetailSchema,
-  canSendMessage: booleanOrTrue,
-  creditBalance: numberOrZero,
-  creditsCharged: numberOrZero,
-  requiredCredits: numberOrZero,
-  shortfallCredits: numberOrZero,
-});
+export const ChatSendResponseSchema = z
+  .object({
+    reply: stringOrEmpty,
+    audioUrl: stringOrEmpty,
+    messageId: stringOrEmpty,
+    isGuest: booleanOrFalse,
+    // 函数式 default —— 每次 parse 时重新调 Date.now()（后端不返回 timestamp 时用当下时间）
+    timestamp: numberOrLazy(() => Date.now()),
+    image: ChatImageSchema,
+    lockDetail: ChatLockDetailSchema,
+    canSendMessage: booleanOrTrue,
+    creditBalance: numberOrZero,
+    creditsCharged: numberOrZero,
+    requiredCredits: numberOrZero,
+    shortfallCredits: numberOrZero,
+  })
+  .readonly();
 
 export type ChatSendResponseInput = z.input<typeof ChatSendResponseSchema>;
 export type ChatSendResponseData = z.output<typeof ChatSendResponseSchema>;
 
-export class ChatSendResponse {
-  declare readonly reply: string;
-  declare readonly audioUrl: string;
-  declare readonly messageId: string;
-  declare readonly timestamp: number;
-  declare readonly image: ChatImageData;
-  declare readonly lockDetail: ChatLockDetailData;
-  declare readonly canSendMessage: boolean;
-  declare readonly creditBalance: number;
-  declare readonly creditsCharged: number;
-  declare readonly requiredCredits: number;
-  declare readonly shortfallCredits: number;
-
-  private constructor(input: ChatSendResponseInput) {
-    const data = ChatSendResponseSchema.parse(input);
-    Object.assign(this, data);
-    Object.freeze(this);
-  }
-
-  static from(input: ChatSendResponseInput): ChatSendResponse {
-    return new ChatSendResponse(input);
-  }
-
-  static fromJson(json: unknown): ChatSendResponse {
-    return ChatSendResponse.from(json as ChatSendResponseInput);
-  }
-
-  toJson(): ChatSendResponseData {
-    return ChatSendResponseSchema.parse(this);
-  }
-}
+export type ChatSendResponse = ChatSendResponseData;