refactor(chat): remove guest history synchronization

src/data/mock/chat/requests/sync-guest-messages.json

@@ -1,15 +0,0 @@
-{
-  "characterId": "elio",
-  "messages": [
-    {
-      "role": "user",
-      "content": "Hi Elio.",
-      "timestamp": "2026-06-23T02:10:00.000Z"
-    },
-    {
-      "role": "assistant",
-      "content": "Hi, I am right here with you.",
-      "timestamp": "2026-06-23T02:10:04.000Z"
-    }
-  ]
-}

src/data/repositories/chat_remote_data_source.ts

@@ -6,8 +6,6 @@ import type {
 import {
   ChatHistoryResponse,
   ChatPreviewsResponse,
-  ChatSyncRequest,
-  ChatSyncRequestSchema,
   ChatSendResponse,
   SendMessageRequestSchema,
   UnlockHistoryRequestSchema,
@@ -58,15 +56,6 @@ export class ChatRemoteDataSource {
     return Result.wrap(() => this.api.getPreviews(options));
   }
 
-  async syncGuestHistory(
-    request: ChatSyncRequest,
-    options?: ChatRequestOptions,
-  ): Promise<Result<void>> {
-    return Result.wrap(() =>
-      this.api.syncGuestHistory(ChatSyncRequestSchema.parse(request), options),
-    );
-  }
-
   async getHistory(
     characterId: string,
     limit = 50,

src/data/repositories/chat_repository.ts

@@ -10,7 +10,6 @@ import type {
 import type {
   ChatHistoryResponse,
   ChatPreviewsResponse,
-  ChatSyncRequest,
   ChatMessage,
   ChatSendResponse,
   UnlockHistoryResponse,
@@ -63,13 +62,6 @@ export class ChatRepository implements IChatRepository {
     return this.remote.getPreviews(options);
   }
 
-  async syncGuestHistory(
-    request: ChatSyncRequest,
-    options?: ChatRequestOptions,
-  ): Promise<Result<void>> {
-    return this.remote.syncGuestHistory(request, options);
-  }
-
   /** 解锁单条历史付费 / 私密消息。 */
   async unlockPrivateMessage(
     input: UnlockPrivateMessageInput,

src/data/repositories/interfaces/ichat_repository.ts

@@ -7,7 +7,6 @@
 import type {
   ChatHistoryResponse,
   ChatPreviewsResponse,
-  ChatSyncRequest,
   ChatImageData,
   ChatLockDetailData,
   ChatLockType,
@@ -79,12 +78,6 @@ export interface IChatRepository {
     options?: ChatRequestOptions,
   ): Promise<Result<ChatPreviewsResponse>>;
 
-  /** 把一个角色的游客历史同步到正式账号。 */
-  syncGuestHistory(
-    request: ChatSyncRequest,
-    options?: ChatRequestOptions,
-  ): Promise<Result<void>>;
-
   /** 解锁单条历史付费 / 私密消息。 */
   unlockPrivateMessage(
     input: UnlockPrivateMessageInput,

src/data/schemas/chat/__tests__/multi_role_contract.test.ts

@@ -2,7 +2,6 @@ import { describe, expect, it } from "vitest";
 
 import {
   ChatPreviewsResponseSchema,
-  ChatSyncRequestSchema,
   SendMessageRequestSchema,
 } from "@/data/schemas/chat";
 
@@ -26,23 +25,12 @@ describe("multi-role chat schemas", () => {
     ).toThrow();
   });
 
-  it("parses nullable previews and immutable sync messages", () => {
+  it("parses nullable immutable previews", () => {
     const previews = ChatPreviewsResponseSchema.parse({
       items: [{ characterId: "elio", message: null }],
     });
-    const sync = ChatSyncRequestSchema.parse({
-      characterId: "elio",
-      messages: [
-        {
-          role: "assistant",
-          content: "Welcome back",
-          timestamp: "2026-07-20T00:00:00.000Z",
-        },
-      ],
-    });
 
     expect(previews.items[0]?.message).toBeNull();
     expect(Object.isFrozen(previews.items)).toBe(true);
-    expect(Object.isFrozen(sync.messages)).toBe(true);
   });
 });

src/data/schemas/chat/index.ts

@@ -7,7 +7,6 @@ export * from "./chat_media";
 export * from "./chat_message";
 export * from "./chat_payloads";
 export * from "./request/send_message_request";
-export * from "./request/chat_sync_request";
 export * from "./request/unlock_history_request";
 export * from "./request/unlock_private_request";
 export * from "./response/chat_history_response";

src/data/schemas/chat/request/chat_sync_request.ts

@@ -1,19 +0,0 @@
-import { z } from "zod";
-
-export const ChatSyncMessageSchema = z
-  .object({
-    role: z.enum(["user", "assistant"]),
-    content: z.string(),
-    timestamp: z.string().min(1),
-  })
-  .readonly();
-
-export const ChatSyncRequestSchema = z
-  .object({
-    characterId: z.string().min(1),
-    messages: z.array(ChatSyncMessageSchema).min(1).readonly(),
-  })
-  .readonly();
-
-export type ChatSyncRequestInput = z.input<typeof ChatSyncRequestSchema>;
-export type ChatSyncRequest = z.output<typeof ChatSyncRequestSchema>;

src/data/schemas/chat/request/index.ts

@@ -3,6 +3,5 @@
  */
 
 export * from "./send_message_request";
-export * from "./chat_sync_request";
 export * from "./unlock_private_request";
 export * from "./unlock_history_request";

src/data/services/api/__tests__/multi_character_api.test.ts

@@ -1,7 +1,6 @@
 import { beforeEach, describe, expect, it, vi } from "vitest";
 
 import {
-  ChatSyncRequestSchema,
   SendMessageRequestSchema,
   UnlockHistoryRequestSchema,
   UnlockPrivateRequestSchema,
@@ -74,30 +73,16 @@ describe("multi-character API contract", () => {
     });
   });
 
-  it("loads previews and syncs guest history", async () => {
+  it("loads chat previews", async () => {
     const api = new ChatApi();
-    httpClientMock
-      .mockResolvedValueOnce({ success: true, data: { items: [] } })
-      .mockResolvedValueOnce({ success: true, data: {} });
+    httpClientMock.mockResolvedValueOnce({
+      success: true,
+      data: { items: [] },
+    });
 
     await api.getPreviews();
-    const request = ChatSyncRequestSchema.parse({
-      characterId: CHARACTER_ID,
-      messages: [
-        {
-          role: "user",
-          content: "Hello",
-          timestamp: "2026-07-20T00:00:00.000Z",
-        },
-      ],
-    });
-    await api.syncGuestHistory(request);
 
-    expect(httpClientMock).toHaveBeenNthCalledWith(1, "/api/chat/previews", {});
-    expect(httpClientMock).toHaveBeenNthCalledWith(2, "/api/chat/sync", {
-      method: "POST",
-      body: request,
-    });
+    expect(httpClientMock).toHaveBeenCalledWith("/api/chat/previews", {});
   });
 
   it("forwards request cancellation to the HTTP client", async () => {

src/data/services/api/api_contract.json

@@ -26,6 +26,5 @@
   "reportUserInfo": { "method": "post", "path": "/api/data/report-user-info" },
   "feedback": { "method": "post", "path": "/api/feedback" },
   "characters": { "method": "get", "path": "/api/characters" },
-  "chatPreviews": { "method": "get", "path": "/api/chat/previews" },
-  "chatSync": { "method": "post", "path": "/api/chat/sync" }
+  "chatPreviews": { "method": "get", "path": "/api/chat/previews" }
 }

src/data/services/api/api_path.ts

@@ -104,6 +104,4 @@ export class ApiPath {
 
   static readonly chatPreviews = apiContract.chatPreviews.path;
 
-  static readonly chatSync = apiContract.chatSync.path;
-
 }

src/data/services/api/chat_api.ts

@@ -11,7 +11,6 @@ import {
   ChatPreviewsResponseSchema,
   ChatSendResponse,
   ChatSendResponseSchema,
-  ChatSyncRequest,
   SendMessageRequest,
   UnlockHistoryRequest,
   UnlockHistoryResponse,
@@ -67,17 +66,6 @@ export class ChatApi {
     return ChatPreviewsResponseSchema.parse(unwrap(env));
   }
 
-  async syncGuestHistory(
-    body: ChatSyncRequest,
-    options?: { signal?: AbortSignal },
-  ): Promise<void> {
-    await httpClient<ApiEnvelope<unknown>>(ApiPath.chatSync, {
-      method: "POST",
-      body,
-      ...(options?.signal ? { signal: options.signal } : {}),
-    }).then(unwrap);
-  }
-
   /**
    * 解锁单条历史付费 / 私密消息
    */

src/data/storage/navigation/navigation_storage.ts

@@ -259,22 +259,6 @@ export class NavigationStorage {
     await SessionAsyncUtil.remove(StorageKeys.pendingChatImageReturn);
   }
 
-  static async saveGuestChatOwnerKey(ownerKey: string): Promise<void> {
-    await SessionAsyncUtil.setJson(
-      StorageKeys.guestChatOwnerKey,
-      ownerKey,
-      z.string().min(1),
-    );
-  }
-
-  static async getGuestChatOwnerKey(): Promise<string | null> {
-    const result = await SessionAsyncUtil.getJson(
-      StorageKeys.guestChatOwnerKey,
-      z.string().min(1),
-    );
-    return Result.isOk(result) ? result.data : null;
-  }
-
   private static parsePendingChatUnlock(
     value: PendingChatUnlock | null,
   ): PendingChatUnlock | null {

src/data/storage/storage_keys.ts

@@ -28,7 +28,6 @@ export const StorageKeys = {
   pendingChatImageReturn: "pending_chat_image_return",
   pendingChatUnlock: "pending_chat_unlock",
   pendingChatPromotion: "pending_chat_promotion",
-  guestChatOwnerKey: "guest_chat_owner_key",
 
   // pwa / app info
   pwaDialogShown: "pwa_dialog_shown",