fix(chat): isolate pending flows and cancel stale requests

src/data/repositories/interfaces/ichat_repository.ts

@@ -42,12 +42,21 @@ export interface UnlockPrivateMessageInput {
   clientLockId?: string;
 }
 
+export interface ChatRequestOptions {
+  signal?: AbortSignal;
+}
+
+export interface ChatSendOptions extends ChatRequestOptions {
+  image?: string;
+  useWebSocket?: boolean;
+}
+
 export interface IChatRepository {
   /** 发送一条消息。 */
   sendMessage(
     characterId: string,
     message: string,
-    options?: { image?: string; useWebSocket?: boolean },
+    options?: ChatSendOptions,
   ): Promise<Result<ChatSendResponse>>;
 
   /** 获取聊天历史，分页参数默认 limit=50, offset=0。 */
@@ -55,15 +64,20 @@ export interface IChatRepository {
     characterId: string,
     limit?: number,
     offset?: number,
+    options?: ChatRequestOptions,
   ): Promise<Result<ChatHistoryResponse>>;
 
   /** 解锁单条历史付费 / 私密消息。 */
   unlockPrivateMessage(
     input: UnlockPrivateMessageInput,
+    options?: ChatRequestOptions,
   ): Promise<Result<UnlockPrivateResponse>>;
 
   /** 一键解锁历史锁定消息。 */
-  unlockHistory(characterId: string): Promise<Result<UnlockHistoryResponse>>;
+  unlockHistory(
+    characterId: string,
+    options?: ChatRequestOptions,
+  ): Promise<Result<UnlockHistoryResponse>>;
 
   /** 把本地缓存中的单条锁定消息标记为已解锁。 */
   markPrivateMessageUnlockedInLocal(