fix：靠原型不齐页面

lib/app/app.dart

@@ -1,5 +1,4 @@
 import 'package:flutter/material.dart';
-import 'package:google_fonts/google_fonts.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:shadcn_ui/shadcn_ui.dart';
 
@@ -15,10 +14,7 @@ class JinzhiApp extends ConsumerWidget {
   Widget build(BuildContext context, WidgetRef ref) {
     final router = ref.watch(routerProvider);
     final mode = ref.watch(themeModeControllerProvider);
-    // DM Sans 作主字体（拉丁/数字），中文走系统级联（iOS 苹方 / Android 厂商
-    // 中文字体）——主流做法，不显式点名、不内置字体。
-    final dmSansFamily = GoogleFonts.dmSans().fontFamily;
-    final textTheme = ShadTextTheme(family: dmSansFamily);
+    final textTheme = ShadTextTheme();
     return ShadApp.router(
       title: '金值',
       themeMode: mode,