feat: UI 系统中心化 + 趋势图重构 + 法律文档 H5 上线

- UI 系统: 新增 design_tokens / module_visuals / app_buttons / app_status_badge / app_toast / ai_content 六个共享模块; 28 个页面接入, SnackBar 全部替换为 AppToast
- 趋势图: 直线折线 + 渐变填充 + 阴影; 去网格线; X 轴日+月份分隔; Y 轴整数刻度最多 4 个; 点击数据点/录入记录显示上方浮层, 选中点变实心
- 法律文档 H5: 后端 wwwroot 托管隐私政策/服务协议/关于/个人信息收集清单/第三方 SDK 清单 + 索引页; Program.cs 启用 UseDefaultFiles + UseStaticFiles
- 其他: auth_provider 登录流程调整; api_client IP 适配; 主页智能体栏间距优化

health_app/lib/pages/home/home_page.dart

@@ -6,6 +6,7 @@ import 'package:image_picker/image_picker.dart';
 import 'package:file_picker/file_picker.dart';
 import 'package:shadcn_ui/shadcn_ui.dart';
 import '../../core/app_colors.dart';
+import '../../core/app_module_visuals.dart';
 import '../../core/app_theme.dart';
 import '../../core/navigation_provider.dart';
 import '../../providers/auth_provider.dart';
@@ -26,6 +27,8 @@ class _HomePageState extends ConsumerState<HomePage>
   final _textCtrl = TextEditingController();
   final _scrollCtrl = ScrollController();
   final _focusNode = FocusNode();
+  final _scaffoldKey = GlobalKey<ScaffoldState>();
+  double? _drawerDragStartX;
   String? _pickedImagePath;
   int _lastMsgCount = 0;
   Timer? _notificationTimer;
@@ -38,11 +41,18 @@ class _HomePageState extends ConsumerState<HomePage>
       (_) => ref.invalidate(notificationUnreadCountProvider),
     );
     _notificationTimer = Timer.periodic(
-      const Duration(seconds: 30),
+      const Duration(minutes: 2),
       (_) => ref.invalidate(notificationUnreadCountProvider),
     );
   }
 
+  @override
+  void didChangeAppLifecycleState(AppLifecycleState state) {
+    if (state == AppLifecycleState.resumed) {
+      ref.invalidate(notificationUnreadCountProvider);
+    }
+  }
+
   @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
@@ -113,20 +123,46 @@ class _HomePageState extends ConsumerState<HomePage>
     _lastMsgCount = currentCount;
 
     return Scaffold(
+      key: _scaffoldKey,
       backgroundColor: const Color(0xFFFFFCFF),
       drawer: const HealthDrawer(),
-      drawerEdgeDragWidth: MediaQuery.sizeOf(context).width * 0.65,
+      drawerEnableOpenDragGesture: false,
       body: AppBackground(
         safeArea: true,
         child: Column(
           children: [
             _buildHeader(user),
             Expanded(
-              child: RepaintBoundary(
-                child: ChatMessagesView(
-                  scrollCtrl: _scrollCtrl,
-                  messages: chatState.messages,
-                ),
+              child: Stack(
+                children: [
+                  RepaintBoundary(
+                    child: ChatMessagesView(
+                      scrollCtrl: _scrollCtrl,
+                      messages: chatState.messages,
+                    ),
+                  ),
+                  Positioned(
+                    left: 0,
+                    top: 0,
+                    bottom: 0,
+                    width: 44,
+                    child: GestureDetector(
+                      behavior: HitTestBehavior.opaque,
+                      onHorizontalDragStart: (details) {
+                        _drawerDragStartX = details.globalPosition.dx;
+                      },
+                      onHorizontalDragUpdate: (details) {
+                        final startX = _drawerDragStartX;
+                        if (startX == null) return;
+                        if (details.globalPosition.dx - startX < 28) return;
+                        _drawerDragStartX = null;
+                        _scaffoldKey.currentState?.openDrawer();
+                      },
+                      onHorizontalDragEnd: (_) => _drawerDragStartX = null,
+                      onHorizontalDragCancel: () => _drawerDragStartX = null,
+                    ),
+                  ),
+                ],
               ),
             ),
             _buildBottomBar(context),
@@ -210,12 +246,12 @@ class _HomePageState extends ConsumerState<HomePage>
   }
 
   static final _agentDefs = [
-    (ActiveAgent.consultation, 'AI问诊', LucideIcons.messageCircle),
-    (ActiveAgent.health, '记数据', LucideIcons.heartPulse),
-    (ActiveAgent.diet, '拍饮食', LucideIcons.utensils),
-    (ActiveAgent.medication, '药管家', LucideIcons.pill),
-    (ActiveAgent.report, '报告分析', LucideIcons.fileText),
-    (ActiveAgent.exercise, '运动', LucideIcons.activity),
+    ActiveAgent.consultation,
+    ActiveAgent.health,
+    ActiveAgent.diet,
+    ActiveAgent.medication,
+    ActiveAgent.report,
+    ActiveAgent.exercise,
   ];
 
   Widget _buildAgentBar() {
@@ -227,24 +263,18 @@ class _HomePageState extends ConsumerState<HomePage>
         itemCount: _agentDefs.length,
         separatorBuilder: (_, _) => const SizedBox(width: 8),
         itemBuilder: (_, i) {
-          final (agent, label, icon) = _agentDefs[i];
-          final gradient = _agentGradient(agent);
+          final agent = _agentDefs[i];
+          final visual = _agentVisual(agent);
           return GestureDetector(
-            onTap: () =>
-                ref.read(chatProvider.notifier).triggerAgent(agent, label),
+            onTap: () => ref
+                .read(chatProvider.notifier)
+                .triggerAgent(agent, visual.label),
             child: Container(
               padding: const EdgeInsets.symmetric(horizontal: 13, vertical: 9),
               decoration: BoxDecoration(
                 color: Colors.white.withValues(alpha: 0.86),
                 borderRadius: BorderRadius.circular(999),
                 border: Border.all(color: Colors.white, width: 1.2),
-                boxShadow: [
-                  BoxShadow(
-                    color: const Color(0xFF6366F1).withValues(alpha: 0.10),
-                    blurRadius: 14,
-                    offset: const Offset(0, 7),
-                  ),
-                ],
               ),
               child: Row(
                 mainAxisSize: MainAxisSize.min,
@@ -253,14 +283,14 @@ class _HomePageState extends ConsumerState<HomePage>
                     width: 16,
                     height: 16,
                     decoration: BoxDecoration(
-                      gradient: gradient,
+                      gradient: visual.gradient,
                       borderRadius: BorderRadius.circular(6),
                     ),
-                    child: Icon(icon, size: 11, color: Colors.white),
+                    child: Icon(visual.icon, size: 11, color: Colors.white),
                   ),
                   const SizedBox(width: 6),
                   Text(
-                    label,
+                    visual.label,
                     style: const TextStyle(
                       fontSize: 14,
                       fontWeight: FontWeight.w700,
@@ -276,39 +306,41 @@ class _HomePageState extends ConsumerState<HomePage>
     );
   }
 
-  LinearGradient _agentGradient(ActiveAgent agent) {
+  ({String label, IconData icon, LinearGradient gradient}) _agentVisual(
+    ActiveAgent agent,
+  ) {
+    ({String label, AppModuleVisual visual}) fromModule(
+      String label,
+      AppModuleVisual visual,
+    ) => (label: label, visual: visual);
+
+    final module = switch (agent) {
+      ActiveAgent.health => fromModule('记数据', AppModuleVisuals.health),
+      ActiveAgent.diet => fromModule('拍饮食', AppModuleVisuals.diet),
+      ActiveAgent.medication => fromModule('药管家', AppModuleVisuals.medication),
+      ActiveAgent.report => fromModule('报告分析', AppModuleVisuals.report),
+      ActiveAgent.exercise => fromModule('运动', AppModuleVisuals.exercise),
+      _ => null,
+    };
+    if (module != null) {
+      return (
+        label: module.label,
+        icon: module.visual.icon,
+        gradient: module.visual.gradient,
+      );
+    }
+
     return switch (agent) {
-      ActiveAgent.consultation => const LinearGradient(
-        begin: Alignment.topCenter,
-        end: Alignment.bottomCenter,
-        colors: [Color(0xFFFFCAD4), Color(0xFFFF9AAE)],
+      ActiveAgent.consultation => (
+        label: 'AI问诊',
+        icon: LucideIcons.messageCircle,
+        gradient: AppColors.doctorGradient,
       ),
-      ActiveAgent.health => const LinearGradient(
-        begin: Alignment.topCenter,
-        end: Alignment.bottomCenter,
-        colors: [Color(0xFFA1FFCE), Color(0xFF69DB8F)],
+      _ => (
+        label: 'AI问诊',
+        icon: LucideIcons.messageCircle,
+        gradient: AppColors.primaryGradient,
       ),
-      ActiveAgent.diet => const LinearGradient(
-        begin: Alignment.topCenter,
-        end: Alignment.bottomCenter,
-        colors: [Color(0xFFF6D365), Color(0xFFFDA085)],
-      ),
-      ActiveAgent.medication => const LinearGradient(
-        begin: Alignment.topCenter,
-        end: Alignment.bottomCenter,
-        colors: [Color(0xFF89F7FE), Color(0xFF66A6FF)],
-      ),
-      ActiveAgent.report => const LinearGradient(
-        begin: Alignment.topCenter,
-        end: Alignment.bottomCenter,
-        colors: [Color(0xFFE0C3FC), Color(0xFF8EC5FC)],
-      ),
-      ActiveAgent.exercise => const LinearGradient(
-        begin: Alignment.topCenter,
-        end: Alignment.bottomCenter,
-        colors: [Color(0xFFB6F2FF), Color(0xFF7DD3FC)],
-      ),
-      _ => AppColors.primaryGradient,
     };
   }
 
@@ -319,20 +351,13 @@ class _HomePageState extends ConsumerState<HomePage>
         border: Border(
           top: BorderSide(color: Colors.white.withValues(alpha: 0.62)),
         ),
-        boxShadow: [
-          BoxShadow(
-            color: const Color(0xFF101828).withValues(alpha: 0.045),
-            blurRadius: 20,
-            offset: const Offset(0, -8),
-          ),
-        ],
       ),
       child: Column(
         mainAxisSize: MainAxisSize.min,
         children: [
-          const SizedBox(height: 6),
+          const SizedBox(height: 8),
           _buildAgentBar(),
-          const SizedBox(height: 6),
+          const SizedBox(height: 12),
           if (_pickedImagePath != null) _buildImagePreview(),
           _buildInputBar(),
         ],
@@ -503,11 +528,9 @@ class _HomePageState extends ConsumerState<HomePage>
                   final path = pdfFile.path;
                   if (path == null || path.isEmpty) return;
                   // 上传 + 让 AI 看 PDF 内容
-                  await ref.read(chatProvider.notifier).sendPdf(
-                    path,
-                    pdfFile.name,
-                    _textCtrl.text.trim(),
-                  );
+                  await ref
+                      .read(chatProvider.notifier)
+                      .sendPdf(path, pdfFile.name, _textCtrl.text.trim());
                   _textCtrl.clear();
                   if (mounted) setState(() {});
                 },