feat(message): add conversation notification mute feature

Add notification mute functionality for conversations with the following changes:

- Add notification_muted field to ConversationResponse and related DTOs
- Add notificationMutedMap to message store for tracking mute state
- Add setConversationNotificationMuted API method
- Integrate mute toggle in GroupInfoScreen and PrivateChatInfoScreen
- Skip system notifications for muted conversations
- Suppress vibration for muted conversations in WS handler
- Clean up selected mentions when @mentions are removed from text

Chore changes:
- Update PostCard bookmark icon from 'bookmark' to 'star'
- Refine card styles across AppsScreen, MaterialsScreen, and SubjectMaterialsScreen
- Improve week selector scrolling to center selected week in ScheduleScreen

src/screens/message/PrivateChatInfoScreen.tsx

@@ -23,6 +23,7 @@ import { messageService } from '@/services/message';
 import { ApiError } from '@/services/core';
 import { messageRepository, conversationRepository } from '@/database';
 import { messageManager } from '../../stores/message';
+import { useMessageStore } from '../../stores/message/store';
 import { userManager } from '../../stores/user';
 import { Avatar, Text, Button, Loading, Divider } from '../../components/common';
 import { User } from '../../types';
@@ -51,7 +52,7 @@ const PrivateChatInfoScreen: React.FC = () => {
   const [isBlocked, setIsBlocked] = useState(false);
 
   // 聊天设置状态
-  const [isMuted, setIsMuted] = useState(false);
+  const isMuted = useMessageStore(state => state.notificationMutedMap.get(conversationId) || false);
   const [isPinned, setIsPinned] = useState(false);
 
   // 加载用户信息
@@ -96,15 +97,12 @@ const PrivateChatInfoScreen: React.FC = () => {
     loadChatSettings();
   }, [loadUserInfo, loadChatSettings]);
 
-  // 切换免打扰（仅本地状态，实际需要API支持）
+  // 切换免打扰
   const toggleMute = async () => {
     try {
       const newValue = !isMuted;
-      setIsMuted(newValue);
-      // TODO: 调用API更新免打扰状态
-      // await conversationService.updateConversationMute(conversationId, newValue);
+      await messageManager.toggleNotificationMuted(conversationId, newValue);
     } catch (error) {
-      setIsMuted(!isMuted);
       Alert.alert('错误', '设置免打扰失败');
     }
   };