build(config): update bundle identifier and add signing plugin

feat(notification): improve JPush integration and message sync reliability

- Update iOS bundle identifier to `cn.qczlit.weiyou`
- Add `withSigning` Expo plugin
- Enhance `withJPush` plugin with improved Swift AppDelegate injection logic
- Update JPush default channel to `developer-default`
- Optimize `MessageSyncService` to prevent race conditions in unread count updates
- Implement promise deduplication for `fetchUnreadCount` to prevent redundant network requests
- Add `setConversationsWithUnread` to `useMessageStore` for atomic state updates of conversations and unread counts

src/stores/message/services/MessageSyncService.ts

@@ -35,6 +35,8 @@ export class MessageSyncService implements IMessageSyncService {
   private loadingMoreConversations = false;
   /** 聊天页活跃期间延迟的会话列表刷新 */
   private deferredConversationRefresh = false;
+  /** fetchUnreadCount 去重：复用 in-flight promise */
+  private fetchUnreadCountPromise: Promise<void> | null = null;
 
   constructor(
     getCurrentUserId: () => string | null,
@@ -108,15 +110,12 @@ export class MessageSyncService implements IMessageSyncService {
         newConversations.set(normalizedConv.id, normalizedConv);
       });
       
-      // 使用 store.setConversations 会自动排序并更新 conversationList
-      store.setConversations(newConversations);
-      
-      // 计算并更新未读数
+      // 合并更新：conversations + totalUnread 在同一次 set 中完成，消除中间状态窗口
       const totalUnread = Array.from(newConversations.values()).reduce(
         (sum, conv) => sum + (conv.unread_count || 0),
-        0
+        0,
       );
-      store.setUnreadCount(totalUnread, store.getUnreadCount().system);
+      store.setConversationsWithUnread(newConversations, totalUnread, store.getUnreadCount().system);
       
       this.persistConversationListCache();
     } catch (error) {
@@ -360,11 +359,23 @@ export class MessageSyncService implements IMessageSyncService {
   }
 
   /**
-   * 获取未读数
+   * 获取未读数（去重：复用 in-flight promise）
    */
   async fetchUnreadCount(): Promise<void> {
+    if (this.fetchUnreadCountPromise) {
+      return this.fetchUnreadCountPromise;
+    }
+    this.fetchUnreadCountPromise = this.doFetchUnreadCount();
+    try {
+      await this.fetchUnreadCountPromise;
+    } finally {
+      this.fetchUnreadCountPromise = null;
+    }
+  }
+
+  private async doFetchUnreadCount(): Promise<void> {
     const store = useMessageStore.getState();
-    
+
     try {
       const [unreadData, systemUnreadData] = await Promise.all([
         messageService.getUnreadCount(),
@@ -388,21 +399,28 @@ export class MessageSyncService implements IMessageSyncService {
         }
       }
 
-      // 服务端汇总未读为 0 时，清掉内存中残留的红点
+      // 服务端汇总未读为 0 时，仅在本地也一致时才清零（避免缓存竞态导致的抖动）
       if (totalUnread === 0) {
-        const currentConversations = store.getState().conversations;
-        let anyCleared = false;
-        const newConversations = new Map(currentConversations);
-        for (const [cid, conv] of newConversations) {
-          if ((conv.unread_count || 0) > 0) {
-            newConversations.set(cid, { ...conv, unread_count: 0 });
-            anyCleared = true;
+        const localSum = Array.from(store.getState().conversations.values())
+          .reduce((sum, conv) => sum + (conv.unread_count || 0), 0);
+        if (localSum > 0) {
+          // 本地有未读但服务端返回 0 → 可能是后端缓存竞态，保留本地状态
+          // 下一次 fetchConversations 会提供权威的 per-conversation 数据
+        } else {
+          // 本地也无未读，确认清零
+          const currentConversations = store.getState().conversations;
+          let anyCleared = false;
+          const newConversations = new Map(currentConversations);
+          for (const [cid, conv] of newConversations) {
+            if ((conv.unread_count || 0) > 0) {
+              newConversations.set(cid, { ...conv, unread_count: 0 });
+              anyCleared = true;
+            }
+          }
+          if (anyCleared) {
+            store.setConversations(newConversations);
+            this.persistConversationListCache();
           }
-        }
-        if (anyCleared) {
-          // 使用 zustand set 函数正确更新状态
-          store.setConversations(newConversations);
-          this.persistConversationListCache();
         }
       }
     } catch (error) {
@@ -487,15 +505,12 @@ export class MessageSyncService implements IMessageSyncService {
       newConversations.set(normalizedConv.id, normalizedConv);
     });
     
-    // 使用 store.setConversations 会自动排序并更新 conversationList
-    store.setConversations(newConversations);
-    
-    // 计算并更新未读数
+    // 合并更新：conversations + totalUnread 在同一次 set 中完成
     const totalUnread = Array.from(newConversations.values()).reduce(
       (sum, conv) => sum + (conv.unread_count || 0),
-      0
+      0,
     );
-    store.setUnreadCount(totalUnread, store.getUnreadCount().system);
+    store.setConversationsWithUnread(newConversations, totalUnread, store.getUnreadCount().system);
     
     return true;
   }