fix: 7处修复 - 溢出/黑屏/趋势图/欢迎卡片/抽屉

health_app/lib/pages/medication/medication_edit_page.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
+import '../../core/navigation_provider.dart';
 
 class MedicationEditPage extends ConsumerStatefulWidget {
   final String? medicationId;
@@ -24,7 +25,7 @@ class _MedicationEditPageState extends ConsumerState<MedicationEditPage> {
       appBar: AppBar(
         backgroundColor: Colors.white,
         elevation: 0,
-        leading: IconButton(icon: const Icon(Icons.chevron_left), onPressed: () => Navigator.pop(context)),
+        leading: IconButton(icon: const Icon(Icons.chevron_left), onPressed: () => popRoute(ref)),
         title: const Text('编辑用药', style: TextStyle(color: Color(0xFF1A1A1A), fontWeight: FontWeight.w600)),
         centerTitle: true,
         actions: [