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/medication/medication_edit_page.dart

@@ -1,18 +1,26 @@
 import 'package:flutter/material.dart';
-import '../../core/app_colors.dart';
-import '../../core/app_theme.dart';
 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';
+import '../../widgets/app_toast.dart';
 
 class MedicationEditPage extends ConsumerStatefulWidget {
   final String? id;
+
   const MedicationEditPage({super.key, this.id});
+
   @override
   ConsumerState<MedicationEditPage> createState() => _MedicationEditPageState();
 }
 
 class _MedicationEditPageState extends ConsumerState<MedicationEditPage> {
+  static const _visual = AppModuleVisuals.medication;
+
   final _nameCtrl = TextEditingController();
   final _dosageCtrl = TextEditingController();
   final _notesCtrl = TextEditingController();
@@ -74,9 +82,7 @@ class _MedicationEditPageState extends ConsumerState<MedicationEditPage> {
   Future<void> _save() async {
     final name = _nameCtrl.text.trim();
     if (name.isEmpty) {
-      ScaffoldMessenger.of(
-        context,
-      ).showSnackBar(const SnackBar(content: Text('请输入药品名称')));
+      AppToast.show(context, '请输入药品名称', type: AppToastType.warning);
       return;
     }
     setState(() => _loading = true);
@@ -107,17 +113,10 @@ class _MedicationEditPageState extends ConsumerState<MedicationEditPage> {
       }
       ref.invalidate(medicationListProvider);
       ref.invalidate(medicationReminderProvider);
-      if (mounted) {
-        popRoute(ref);
-      }
+      if (mounted) popRoute(ref);
     } catch (_) {
       if (mounted) {
-        ScaffoldMessenger.of(context).showSnackBar(
-          const SnackBar(
-            content: Text('保存失败'),
-            backgroundColor: AppTheme.error,
-          ),
-        );
+        AppToast.show(context, '保存失败', type: AppToastType.error);
       }
     }
     if (mounted) setState(() => _loading = false);
@@ -148,23 +147,22 @@ class _MedicationEditPageState extends ConsumerState<MedicationEditPage> {
       body: ListView(
         padding: const EdgeInsets.all(16),
         children: [
-          // 名称+剂量 一行
           Row(
             children: [
               Expanded(
                 flex: 3,
-                child: _field('药品名称', _nameCtrl, hint: '如: 阿司匹林'),
+                child: _field('药品名称', _nameCtrl, hint: '如：阿司匹林'),
               ),
               const SizedBox(width: 12),
               Expanded(
                 flex: 2,
-                child: _field('剂量', _dosageCtrl, hint: '如: 100mg'),
+                child: _field('剂量', _dosageCtrl, hint: '如：100mg'),
               ),
             ],
           ),
           const SizedBox(height: 16),
-          // 频率选择
-          _label('每日服药次数'), const SizedBox(height: 8),
+          _label('每日服药次数'),
+          const SizedBox(height: 8),
           GestureDetector(
             onTap: () async {
               final n = await showAppCountPicker(
@@ -172,27 +170,17 @@ class _MedicationEditPageState extends ConsumerState<MedicationEditPage> {
                 initialValue: _timesPerDay,
                 min: 1,
                 max: 4,
-                label: ' 次',
+                label: '次',
               );
               if (n != null) _updateTimes(n);
             },
-            child: Container(
-              width: double.infinity,
-              padding: const EdgeInsets.all(12),
-              decoration: BoxDecoration(
-                color: AppTheme.surface,
-                borderRadius: BorderRadius.circular(AppTheme.rMd),
-                border: Border.all(color: AppColors.border),
-              ),
-              child: Text(
-                '$_timesPerDay 次/天',
-                style: const TextStyle(fontSize: 18),
-              ),
+            child: _PickerBox(
+              child: Text('$_timesPerDay 次/天', style: AppTextStyles.formValue),
             ),
           ),
           const SizedBox(height: 16),
-          // 时间选择
-          _label('服药时间'), const SizedBox(height: 8),
+          _label('服药时间'),
+          const SizedBox(height: 8),
           Wrap(
             spacing: 8,
             runSpacing: 8,
@@ -213,23 +201,18 @@ class _MedicationEditPageState extends ConsumerState<MedicationEditPage> {
                   ),
                   decoration: BoxDecoration(
                     color: Colors.white,
-                    borderRadius: BorderRadius.circular(12),
-                    border: Border.all(color: AppColors.border, width: 1),
+                    borderRadius: AppRadius.mdBorder,
+                    border: Border.all(color: _visual.borderColor, width: 1),
                   ),
                   child: Text(
                     '${_times[i].hour.toString().padLeft(2, '0')}:${_times[i].minute.toString().padLeft(2, '0')}',
-                    style: const TextStyle(
-                      fontSize: 18,
-                      color: AppColors.textPrimary,
-                      fontWeight: FontWeight.w600,
-                    ),
+                    style: AppTextStyles.formValue,
                   ),
                 ),
               ),
             ),
           ),
           const SizedBox(height: 16),
-          // 开始+结束 一行
           Row(
             children: [
               Expanded(
@@ -242,7 +225,7 @@ class _MedicationEditPageState extends ConsumerState<MedicationEditPage> {
               const SizedBox(width: 12),
               Expanded(
                 child: _dateFieldOpt(
-                  '结束日期(可选)',
+                  '结束日期（可选）',
                   _end,
                   (d) => setState(() => _end = d),
                 ),
@@ -250,7 +233,7 @@ class _MedicationEditPageState extends ConsumerState<MedicationEditPage> {
             ],
           ),
           const SizedBox(height: 16),
-          _field('备注', _notesCtrl, hint: '如: 饭后服用、睡前'),
+          _field('备注', _notesCtrl, hint: '如：饭后服用、睡前'),
           const SizedBox(height: 32),
           SizedBox(
             width: double.infinity,
@@ -258,20 +241,12 @@ class _MedicationEditPageState extends ConsumerState<MedicationEditPage> {
               onPressed: _loading ? null : _save,
               style: ElevatedButton.styleFrom(
                 backgroundColor: Colors.white,
-                foregroundColor: AppColors.primary,
-                side: const BorderSide(color: AppColors.primary, width: 1.5),
-                shape: RoundedRectangleBorder(
-                  borderRadius: BorderRadius.circular(14),
-                ),
+                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: const TextStyle(
-                  fontSize: 19,
-                  fontWeight: FontWeight.w600,
-                ),
-              ),
+              child: Text(_loading ? '保存中...' : '保存', style: AppTextStyles.button),
             ),
           ),
           const SizedBox(height: 20),
@@ -280,10 +255,8 @@ class _MedicationEditPageState extends ConsumerState<MedicationEditPage> {
     );
   }
 
-  Widget _label(String text) => Text(
-    text,
-    style: TextStyle(fontSize: 17, color: AppColors.textSecondary),
-  );
+  Widget _label(String text) => Text(text, style: AppTextStyles.formLabel);
+
   Widget _field(String label, TextEditingController ctrl, {String? hint}) =>
       Column(
         crossAxisAlignment: CrossAxisAlignment.start,
@@ -296,27 +269,19 @@ class _MedicationEditPageState extends ConsumerState<MedicationEditPage> {
               hintText: hint,
               filled: true,
               fillColor: AppTheme.surface,
-              border: OutlineInputBorder(
-                borderRadius: BorderRadius.circular(AppTheme.rMd),
-                borderSide: const BorderSide(color: AppColors.border),
-              ),
-              enabledBorder: OutlineInputBorder(
-                borderRadius: BorderRadius.circular(AppTheme.rMd),
-                borderSide: const BorderSide(color: AppColors.border),
-              ),
-              focusedBorder: OutlineInputBorder(
-                borderRadius: BorderRadius.circular(AppTheme.rMd),
-                borderSide: const BorderSide(color: AppColors.primary),
-              ),
+              border: _inputBorder(AppColors.border),
+              enabledBorder: _inputBorder(AppColors.border),
+              focusedBorder: _inputBorder(_visual.color),
               contentPadding: const EdgeInsets.symmetric(
                 horizontal: 12,
                 vertical: 12,
               ),
             ),
-            style: const TextStyle(fontSize: 19),
+            style: AppTextStyles.formValue,
           ),
         ],
       );
+
   Widget _dateField(String label, DateTime val, ValueChanged<DateTime> cb) =>
       Column(
         crossAxisAlignment: CrossAxisAlignment.start,
@@ -333,22 +298,13 @@ class _MedicationEditPageState extends ConsumerState<MedicationEditPage> {
               );
               if (d != null) cb(d);
             },
-            child: Container(
-              width: double.infinity,
-              padding: const EdgeInsets.all(12),
-              decoration: BoxDecoration(
-                color: AppTheme.surface,
-                borderRadius: BorderRadius.circular(AppTheme.rMd),
-                border: Border.all(color: AppColors.border),
-              ),
-              child: Text(
-                _displayDate(val),
-                style: const TextStyle(fontSize: 18),
-              ),
+            child: _PickerBox(
+              child: Text(_displayDate(val), style: AppTextStyles.formValue),
             ),
           ),
         ],
       );
+
   Widget _dateFieldOpt(
     String label,
     DateTime? val,
@@ -368,24 +324,17 @@ class _MedicationEditPageState extends ConsumerState<MedicationEditPage> {
           );
           if (d != null) cb(d);
         },
-        child: Container(
-          width: double.infinity,
-          padding: const EdgeInsets.all(12),
-          decoration: BoxDecoration(
-            color: AppTheme.surface,
-            borderRadius: BorderRadius.circular(AppTheme.rMd),
-            border: Border.all(color: AppColors.border),
-          ),
+        child: _PickerBox(
           child: Row(
             children: [
-              Text(
-                val != null ? _displayDate(val) : '不设置',
-                style: TextStyle(
-                  fontSize: 18,
-                  color: val != null ? null : AppTheme.textHint,
+              Expanded(
+                child: Text(
+                  val != null ? _displayDate(val) : '不设置',
+                  style: AppTextStyles.formValue.copyWith(
+                    color: val != null ? null : AppTheme.textHint,
+                  ),
                 ),
               ),
-              if (val != null) const Spacer(),
               if (val != null)
                 GestureDetector(
                   onTap: () => cb(null),
@@ -401,6 +350,31 @@ class _MedicationEditPageState extends ConsumerState<MedicationEditPage> {
       ),
     ],
   );
+
+  OutlineInputBorder _inputBorder(Color color) => OutlineInputBorder(
+    borderRadius: AppRadius.mdBorder,
+    borderSide: BorderSide(color: color),
+  );
+}
+
+class _PickerBox extends StatelessWidget {
+  final Widget child;
+
+  const _PickerBox({required this.child});
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      width: double.infinity,
+      padding: const EdgeInsets.all(12),
+      decoration: BoxDecoration(
+        color: AppTheme.surface,
+        borderRadius: AppRadius.mdBorder,
+        border: Border.all(color: AppColors.border),
+      ),
+      child: child,
+    );
+  }
 }
 
 String _displayDate(DateTime date) {