feat: 饮食记录逻辑重构 + 通知管理分隔线修复 + 多页面 UI 调整

- 饮食: 新增 DietCommentaryPolicy + diet_record_logic, 饮食记录逻辑抽取复用
- 通知管理: 分隔线改为仿通知中心样式, 跳过图标区域只留文字下方
- 侧边栏: 对话记录操作栏浮层修复 + 常用功能间距收紧
- 智能体: 欢迎卡片去 400ms 延迟 + 胶囊去阴影
- 后端: AI 会话仓库新增方法 + 饮食评论策略 + 健康记录规则调整
- 其他: api_client IP 适配 + 多页面 UI 微调 + 新增测试

health_app/lib/pages/medication/medication_checkin_page.dart

@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.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';
@@ -21,8 +22,7 @@ class MedicationCheckInPage extends ConsumerStatefulWidget {
 }
 
 class _MedicationCheckInPageState extends ConsumerState<MedicationCheckInPage> {
-  static const _medBlue = Color(0xFF60A5FA);
-  static const _medViolet = Color(0xFF8B5CF6);
+  static const _visual = AppModuleVisuals.medication;
   static const _softGreen = Color(0xFFEAF8EF);
 
   Future<List<Map<String, dynamic>>>? _future;
@@ -67,11 +67,7 @@ class _MedicationCheckInPageState extends ConsumerState<MedicationCheckInPage> {
     } catch (e) {
       debugPrint('[MedCheckIn] 打卡失败: $e');
       if (mounted) {
-        AppToast.show(
-          context,
-          '打卡失败，请稍后重试',
-          type: AppToastType.error,
-        );
+        AppToast.show(context, '打卡失败，请稍后重试', type: AppToastType.error);
       }
     } finally {
       if (mounted) setState(() => _busyDoses.remove(doseKey));
@@ -212,14 +208,7 @@ class _CheckInSummary extends StatelessWidget {
                 width: 42,
                 height: 42,
                 decoration: BoxDecoration(
-                  gradient: const LinearGradient(
-                    begin: Alignment.topLeft,
-                    end: Alignment.bottomRight,
-                    colors: [
-                      _MedicationCheckInPageState._medBlue,
-                      _MedicationCheckInPageState._medViolet,
-                    ],
-                  ),
+                  gradient: _MedicationCheckInPageState._visual.gradient,
                   borderRadius: BorderRadius.circular(14),
                 ),
                 child: const Icon(
@@ -254,10 +243,10 @@ class _CheckInSummary extends StatelessWidget {
               ),
               Text(
                 '${(progress * 100).round()}%',
-                style: const TextStyle(
+                style: TextStyle(
                   fontSize: 22,
                   fontWeight: FontWeight.w900,
-                  color: _MedicationCheckInPageState._medViolet,
+                  color: _MedicationCheckInPageState._visual.color,
                 ),
               ),
             ],
@@ -269,8 +258,8 @@ class _CheckInSummary extends StatelessWidget {
               minHeight: 9,
               value: progress,
               backgroundColor: AppColors.cardInner,
-              valueColor: const AlwaysStoppedAnimation<Color>(
-                _MedicationCheckInPageState._medBlue,
+              valueColor: AlwaysStoppedAnimation<Color>(
+                _MedicationCheckInPageState._visual.color,
               ),
             ),
           ),
@@ -300,7 +289,7 @@ class _CheckInSummary extends StatelessWidget {
                   label: '总次数',
                   value: '$total',
                   icon: Icons.format_list_numbered_outlined,
-                  color: _MedicationCheckInPageState._medViolet,
+                  color: _MedicationCheckInPageState._visual.color,
                 ),
               ),
             ],
@@ -415,7 +404,7 @@ class _MedicationDoseCard extends StatelessWidget {
                 decoration: BoxDecoration(
                   color: allTaken
                       ? _MedicationCheckInPageState._softGreen
-                      : AppColors.infoLight,
+                      : _MedicationCheckInPageState._visual.lightColor,
                   borderRadius: BorderRadius.circular(14),
                   border: Border.all(color: AppColors.borderLight),
                 ),
@@ -423,7 +412,7 @@ class _MedicationDoseCard extends StatelessWidget {
                   allTaken ? Icons.done_all_rounded : Icons.medication_liquid,
                   color: allTaken
                       ? AppTheme.success
-                      : _MedicationCheckInPageState._medBlue,
+                      : _MedicationCheckInPageState._visual.color,
                   size: 24,
                 ),
               ),
@@ -613,7 +602,7 @@ class _DoseRow extends StatelessWidget {
                         style: FilledButton.styleFrom(
                           backgroundColor: isTaken
                               ? Colors.white
-                              : _MedicationCheckInPageState._medBlue,
+                              : _MedicationCheckInPageState._visual.color,
                           foregroundColor: isTaken
                               ? AppTheme.success
                               : Colors.white,

health_app/lib/pages/medication/medication_edit_page.dart

@@ -3,7 +3,6 @@ import 'package:flutter_riverpod/flutter_riverpod.dart';
 
 import '../../core/app_colors.dart';
 import '../../core/app_design_tokens.dart';
-import '../../core/app_module_visuals.dart';
 import '../../core/app_theme.dart';
 import '../../core/navigation_provider.dart';
 import '../../providers/data_providers.dart';
@@ -19,8 +18,6 @@ class MedicationEditPage extends ConsumerStatefulWidget {
 }
 
 class _MedicationEditPageState extends ConsumerState<MedicationEditPage> {
-  static const _visual = AppModuleVisuals.medication;
-
   final _nameCtrl = TextEditingController();
   final _dosageCtrl = TextEditingController();
   final _notesCtrl = TextEditingController();
@@ -202,7 +199,7 @@ class _MedicationEditPageState extends ConsumerState<MedicationEditPage> {
                   decoration: BoxDecoration(
                     color: Colors.white,
                     borderRadius: AppRadius.mdBorder,
-                    border: Border.all(color: _visual.borderColor, width: 1),
+                    border: Border.all(color: AppColors.border, width: 1),
                   ),
                   child: Text(
                     '${_times[i].hour.toString().padLeft(2, '0')}:${_times[i].minute.toString().padLeft(2, '0')}',
@@ -235,19 +232,9 @@ class _MedicationEditPageState extends ConsumerState<MedicationEditPage> {
           const SizedBox(height: 16),
           _field('备注', _notesCtrl, hint: '如：饭后服用、睡前'),
           const SizedBox(height: 32),
-          SizedBox(
-            width: double.infinity,
-            child: ElevatedButton(
-              onPressed: _loading ? null : _save,
-              style: ElevatedButton.styleFrom(
-                backgroundColor: Colors.white,
-                foregroundColor: _visual.color,
-                side: BorderSide(color: _visual.color, width: 1.5),
-                shape: RoundedRectangleBorder(borderRadius: AppRadius.lgBorder),
-                padding: const EdgeInsets.symmetric(vertical: 14),
-              ),
-              child: Text(_loading ? '保存中...' : '保存', style: AppTextStyles.button),
-            ),
+          _GradientOutlineButton(
+            onPressed: _loading ? null : _save,
+            label: _loading ? '保存中...' : '保存',
           ),
           const SizedBox(height: 20),
         ],
@@ -271,7 +258,7 @@ class _MedicationEditPageState extends ConsumerState<MedicationEditPage> {
               fillColor: AppTheme.surface,
               border: _inputBorder(AppColors.border),
               enabledBorder: _inputBorder(AppColors.border),
-              focusedBorder: _inputBorder(_visual.color),
+              focusedBorder: _inputBorder(AppColors.primary),
               contentPadding: const EdgeInsets.symmetric(
                 horizontal: 12,
                 vertical: 12,
@@ -377,6 +364,57 @@ class _PickerBox extends StatelessWidget {
   }
 }
 
+class _GradientOutlineButton extends StatelessWidget {
+  final VoidCallback? onPressed;
+  final String label;
+
+  const _GradientOutlineButton({required this.onPressed, required this.label});
+
+  @override
+  Widget build(BuildContext context) {
+    final enabled = onPressed != null;
+    return Container(
+      width: double.infinity,
+      decoration: BoxDecoration(
+        gradient: enabled ? AppColors.actionOutlineGradient : null,
+        color: enabled ? null : AppColors.border,
+        borderRadius: AppRadius.lgBorder,
+      ),
+      padding: const EdgeInsets.all(1.4),
+      child: Material(
+        color: Colors.white,
+        borderRadius: AppRadius.lgBorder,
+        child: InkWell(
+          onTap: onPressed,
+          borderRadius: AppRadius.lgBorder,
+          child: SizedBox(
+            height: 46,
+            child: Center(
+              child: enabled
+                  ? ShaderMask(
+                      shaderCallback: (bounds) =>
+                          AppColors.actionOutlineGradient.createShader(bounds),
+                      child: Text(
+                        label,
+                        style: AppTextStyles.button.copyWith(
+                          color: Colors.white,
+                        ),
+                      ),
+                    )
+                  : Text(
+                      label,
+                      style: AppTextStyles.button.copyWith(
+                        color: AppColors.textHint,
+                      ),
+                    ),
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+}
+
 String _displayDate(DateTime date) {
   return '${date.year}/${date.month.toString().padLeft(2, '0')}/${date.day.toString().padLeft(2, '0')}';
 }

health_app/lib/pages/medication/medication_list_page.dart

@@ -50,11 +50,9 @@ class _MedicationListPageState extends ConsumerState<MedicationListPage> {
         ),
         title: const Text('用药管理'),
       ),
-      floatingActionButton: FloatingActionButton(
-        onPressed: () => pushRoute(ref, 'medicationEdit'),
-        backgroundColor: _medVisual.color,
-        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
-        child: const Icon(Icons.add, size: 28, color: Colors.white),
+      floatingActionButton: _GradientFab(
+        gradient: _medVisual.gradient,
+        onTap: () => pushRoute(ref, 'medicationEdit'),
       ),
       body: AppFutureView<List<Map<String, dynamic>>>(
         future: _future,
@@ -136,6 +134,41 @@ class _MedicationListPageState extends ConsumerState<MedicationListPage> {
   }
 }
 
+class _GradientFab extends StatelessWidget {
+  final Gradient gradient;
+  final VoidCallback onTap;
+
+  const _GradientFab({required this.gradient, required this.onTap});
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      width: 56,
+      height: 56,
+      decoration: BoxDecoration(
+        gradient: gradient,
+        borderRadius: AppRadius.lgBorder,
+        boxShadow: [
+          BoxShadow(
+            color: AppColors.medication.withValues(alpha: 0.22),
+            blurRadius: 16,
+            offset: const Offset(0, 8),
+          ),
+        ],
+      ),
+      child: Material(
+        color: Colors.transparent,
+        borderRadius: AppRadius.lgBorder,
+        child: InkWell(
+          onTap: onTap,
+          borderRadius: AppRadius.lgBorder,
+          child: const Icon(Icons.add, size: 28, color: Colors.white),
+        ),
+      ),
+    );
+  }
+}
+
 class _MedicationListGroup extends StatelessWidget {
   final List<Widget> children;