feat: 通知推送/免打扰偏好 + 饮食记录侧滑删除修复 + 聊天交互优化

- 通知: 新增推送开关/免打扰时段偏好持久化 + EF 迁移; 通知管线支持免打扰过滤
- 饮食: 侧滑删除 confirmDismiss 按方向放行(修复删不掉); 新增 diet_nutrition_widgets; 饮食录入页重构
- 聊天: 智能体胶囊点击锁防误触; 流式状态 select 优化; 卡片入场动画
- 主页: 消息列表提取 _HomeMessages + 侧滑手势打开抽屉
- 其他: api_client IP 适配; 通知/用药/饮食端点微调; 测试更新

health_app/lib/pages/home/home_page.dart

@@ -30,7 +30,6 @@ class _HomePageState extends ConsumerState<HomePage>
   final _scaffoldKey = GlobalKey<ScaffoldState>();
   double? _drawerDragStartX;
   String? _pickedImagePath;
-  int _lastMsgCount = 0;
   Timer? _notificationTimer;
 
   @override
@@ -53,16 +52,6 @@ class _HomePageState extends ConsumerState<HomePage>
     }
   }
 
-  @override
-  void didChangeMetrics() {
-    // 键盘动画期间每帧都会回调，让列表底部始终贴住输入区上沿
-    if (!_focusNode.hasFocus) return;
-    WidgetsBinding.instance.addPostFrameCallback((_) {
-      if (!mounted || !_scrollCtrl.hasClients) return;
-      _scrollCtrl.jumpTo(_scrollCtrl.position.maxScrollExtent);
-    });
-  }
-
   @override
   void dispose() {
     WidgetsBinding.instance.removeObserver(this);
@@ -89,7 +78,6 @@ class _HomePageState extends ConsumerState<HomePage>
 
   @override
   Widget build(BuildContext context) {
-    final chatState = ref.watch(chatProvider);
     final auth = ref.watch(authProvider);
     final user = auth.user;
 
@@ -112,15 +100,17 @@ class _HomePageState extends ConsumerState<HomePage>
       }
     });
 
-    final currentCount = chatState.messages.length;
-    if (currentCount > _lastMsgCount) {
+    ref.listen<int>(chatProvider.select((state) => state.messages.length), (
+      previous,
+      current,
+    ) {
+      if (current <= (previous ?? 0)) return;
       WidgetsBinding.instance.addPostFrameCallback((_) {
-        if (_scrollCtrl.hasClients) {
+        if (mounted && _scrollCtrl.hasClients) {
           _scrollCtrl.jumpTo(_scrollCtrl.position.maxScrollExtent);
         }
       });
-    }
-    _lastMsgCount = currentCount;
+    });
 
     return Scaffold(
       key: _scaffoldKey,
@@ -136,10 +126,7 @@ class _HomePageState extends ConsumerState<HomePage>
               child: Stack(
                 children: [
                   RepaintBoundary(
-                    child: ChatMessagesView(
-                      scrollCtrl: _scrollCtrl,
-                      messages: chatState.messages,
-                    ),
+                    child: _HomeMessages(scrollCtrl: _scrollCtrl),
                   ),
                   Positioned(
                     left: 0,
@@ -592,6 +579,18 @@ class _HomePageState extends ConsumerState<HomePage>
   }
 }
 
+class _HomeMessages extends ConsumerWidget {
+  final ScrollController scrollCtrl;
+
+  const _HomeMessages({required this.scrollCtrl});
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final messages = ref.watch(chatProvider.select((state) => state.messages));
+    return ChatMessagesView(scrollCtrl: scrollCtrl, messages: messages);
+  }
+}
+
 class _HeaderIconButton extends StatelessWidget {
   final IconData icon;
   final VoidCallback onTap;

health_app/lib/pages/home/widgets/chat_messages_view.dart

@@ -71,7 +71,9 @@ class ChatMessagesView extends ConsumerWidget {
 
   @override
   Widget build(BuildContext context, WidgetRef ref) {
-    final chatState = ref.watch(chatProvider);
+    final streaming = ref.watch(
+      chatProvider.select((state) => (state.isStreaming, state.thinkingText)),
+    );
 
     if (messages.isEmpty) {
       return Center(
@@ -107,10 +109,17 @@ class ChatMessagesView extends ConsumerWidget {
       controller: scrollCtrl,
       reverse: false,
       padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 8),
+      cacheExtent: 180,
       itemCount: messages.length,
       itemBuilder: (context, index) {
         final msg = messages[index];
-        return _buildMessageContent(context, ref, msg, chatState);
+        return _buildMessageContent(
+          context,
+          ref,
+          msg,
+          streaming.$1,
+          streaming.$2 ?? '',
+        );
       },
     );
   }
@@ -121,7 +130,8 @@ class ChatMessagesView extends ConsumerWidget {
     BuildContext context,
     WidgetRef ref,
     ChatMessage msg,
-    ChatState chatState,
+    bool isStreaming,
+    String thinkingText,
   ) {
     switch (msg.type) {
       case MessageType.agentWelcome:
@@ -134,12 +144,10 @@ class ChatMessagesView extends ConsumerWidget {
       case MessageType.dataConfirm:
         return _buildDataConfirmCard(context, ref, msg);
       default:
-        if (!msg.isUser &&
-            chatState.isStreaming &&
-            msg.content.trim().isEmpty) {
-          return _buildThinkingBubble(context, chatState.thinkingText);
+        if (!msg.isUser && isStreaming && msg.content.trim().isEmpty) {
+          return _buildThinkingBubble(context, thinkingText);
         }
-        return _buildTextBubble(context, ref, msg, chatState);
+        return _buildTextBubble(context, ref, msg);
     }
   }
 
@@ -1048,7 +1056,6 @@ class ChatMessagesView extends ConsumerWidget {
     BuildContext context,
     WidgetRef ref,
     ChatMessage msg,
-    ChatState? chatState,
   ) {
     final isUser = msg.isUser;
     final imageUrl = msg.metadata?['imageUrl'] as String?;
@@ -1088,7 +1095,7 @@ class ChatMessagesView extends ConsumerWidget {
         child: Container(
           padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 14),
           decoration: BoxDecoration(
-            color: isUser ? AppTheme.primary : AppColors.cardBackground,
+            color: isUser ? const Color(0xFF5F56FF) : AppColors.cardBackground,
             borderRadius: BorderRadius.only(
               topLeft: Radius.circular(isUser ? 18.6 : 3),
               topRight: Radius.circular(isUser ? 3 : 18.6),