refactor(ConversationList): streamline conversation list handling and enhance unread count management

- Removed debug display for unread count in ConversationListRow to clean up UI.
- Updated updateConversationCacheUnreadCount to optionally handle myLastReadSeq for better synchronization of read status.
- Refactored message service to unify offset and cursor pagination methods, improving data fetching consistency.
- Introduced a new method to normalize unread counts based on read cursor, ensuring accurate display of unread messages.
- Consolidated conversation list source implementations to simplify remote data fetching logic.

src/stores/messageManager.ts

@@ -353,6 +353,18 @@ class MessageManager {
     this.state.conversationList = list;
   }
 
+  /**
+   * 当已读游标已追上 last_seq 时，强制未读为 0（修复本地 SQLite 中 unread_count 与已读状态不一致）
+   */
+  private normalizeConversationUnreadFromReadCursor(conv: ConversationResponse): ConversationResponse {
+    const lastSeq = Number(conv.last_seq || 0);
+    const myRead = Number(conv.my_last_read_seq ?? 0);
+    if (lastSeq > 0 && myRead >= lastSeq && (conv.unread_count || 0) > 0) {
+      return { ...conv, unread_count: 0 };
+    }
+    return conv;
+  }
+
   /**
    * 将游标接口返回的单条会话写入 Map（统一 string id、尊重 pendingReadMap 已读保护）
    */
@@ -368,6 +380,7 @@ class MessageManager {
     } else {
       next = { ...conv, id };
     }
+    next = this.normalizeConversationUnreadFromReadCursor(next);
     this.state.conversations.set(id, next);
   }
 
@@ -776,14 +789,6 @@ class MessageManager {
     const normalizedConversationId = this.normalizeConversationId(conversation_id);
     const currentUserId = this.getCurrentUserId();
 
-    // 【调试日志】追踪消息来源和重复问题
-
-    // 0. 如果是ACK消息，直接跳过不增加未读数（ACK是发送确认，不是新消息）
-    if (_isAck) {
-      // 但仍然需要更新消息列表（因为ACK包含完整消息内容）
-      // 继续处理但不增加未读数
-    }
-
     // 1. 消息去重检查 - 防止ACK消息和正常消息重复处理
     if (this.isMessageProcessed(id)) {
       return;
@@ -813,7 +818,6 @@ class MessageManager {
               timestamp: Date.now(),
             });
           }
-        } else {
         }
       }).catch(error => {
         console.error('[MessageManager][ERROR] 获取发送者信息失败:', { userId: sender_id, error });
@@ -858,16 +862,13 @@ class MessageManager {
     const isCurrentUserMessage = sender_id === currentUserId;
     const isActiveConversation = normalizedConversationId === this.state.currentConversationId;
 
-    // 【调试日志】追踪未读数增加逻辑
-
-    // 修复：确保当前用户发送的消息不会增加未读数
+    // 确保当前用户发送的消息不会增加未读数
     // 同时确保currentUserId有效（避免undefined === undefined的情况）
     // ACK消息（发送确认）也不应该增加未读数
     const shouldIncrementUnread = !isCurrentUserMessage && !isActiveConversation && !!currentUserId && !_isAck;
     
     if (shouldIncrementUnread) {
       this.incrementUnreadCount(normalizedConversationId);
-    } else {
     }
 
     // 6. 如果是当前活动会话，自动标记已读
@@ -1315,9 +1316,11 @@ class MessageManager {
         const isPending = !!readRecord;
         // 使用智能合并：如果服务器返回 unread_count > 0 但本地有更晚的已读记录，保留本地状态
         const shouldPreserveLocalRead = isPending && (detail.unread_count || 0) > 0;
-        const safeDetail = shouldPreserveLocalRead
-          ? { ...(detail as ConversationResponse), id: normalizedId, unread_count: 0 }
-          : { ...(detail as ConversationResponse), id: normalizedId };
+        const safeDetail = this.normalizeConversationUnreadFromReadCursor(
+          shouldPreserveLocalRead
+            ? { ...(detail as ConversationResponse), id: normalizedId, unread_count: 0 }
+            : { ...(detail as ConversationResponse), id: normalizedId }
+        );
         this.state.conversations.set(normalizedId, safeDetail);
         this.updateConversationList();
 
@@ -1681,6 +1684,25 @@ class MessageManager {
       this.state.totalUnreadCount = unreadData?.total_unread_count ?? 0;
       this.state.systemUnreadCount = systemUnreadData?.unread_count ?? 0;
 
+      // 服务端汇总未读为 0 时，清掉内存/本地缓存中残留的逐会话红点（常见于仅暖机了 SQLite 旧数据）
+      if (this.state.totalUnreadCount === 0 && this.state.conversations.size > 0) {
+        let anyCleared = false;
+        for (const [cid, conv] of this.state.conversations) {
+          if ((conv.unread_count || 0) > 0) {
+            this.state.conversations.set(cid, { ...conv, unread_count: 0 });
+            anyCleared = true;
+          }
+        }
+        if (anyCleared) {
+          this.updateConversationList();
+          this.persistConversationListCache();
+          this.notifySubscribers({
+            type: 'conversations_updated',
+            payload: { conversations: this.state.conversationList },
+            timestamp: Date.now(),
+          });
+        }
+      }
 
       this.notifySubscribers({
         type: 'unread_count_updated',
@@ -1824,10 +1846,11 @@ class MessageManager {
       lastReadSeq: seq,
     });
 
-    // 2. 乐观更新本地状态（立即反映到UI）
+    // 2. 乐观更新本地状态（立即反映到UI；同步已读游标避免与 last_seq 不一致）
     const updatedConv: ConversationResponse = {
       ...conversation,
       unread_count: 0,
+      my_last_read_seq: Math.max(Number(conversation.my_last_read_seq || 0), seq),
     };
     this.state.conversations.set(normalizedId, updatedConv);
     this.state.totalUnreadCount = Math.max(0, this.state.totalUnreadCount - prevUnreadCount);