fix(chat): preserve locked message content on unlock

src/data/repositories/chat_repository.ts

@@ -66,12 +66,10 @@ export class ChatRepository implements IChatRepository {
   /** 把本地缓存中的单条锁定消息标记为已解锁。 */
   async markPrivateMessageUnlockedInLocal(
     messageId: string,
-    content: string,
     lockDetail?: ChatLockDetailData,
   ): Promise<Result<void>> {
     return this.localMessages.markMessageUnlocked(
       messageId,
-      content,
       lockDetail,
     );
   }