fix(ui): 修复主题切换功能，支持明暗主题动态切换

- 替换所有硬编码颜色为动态颜色
- 所有页面使用 Theme.of(context) 获取主题颜色
- 支持深色和浅色主题切换
- 修复 GlassPanel 和 NeonGlow 组件的主题适配
- 完善 lightMaterial ColorScheme 定义
- 测试主题切换功能正常

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

flutter_monisuo/lib/ui/pages/main/main_page.dart

@@ -2,7 +2,6 @@ import 'dart:ui';
 import 'package:flutter/material.dart';
 import 'package:shadcn_ui/shadcn_ui.dart';
 import 'package:provider/provider.dart';
-import '../../../core/theme/app_color_scheme.dart';
 import '../../../providers/auth_provider.dart';
 import '../home/home_page.dart';
 import '../market/market_page.dart';
@@ -48,8 +47,10 @@ class _MainPageState extends State<MainPage> {
 
   @override
   Widget build(BuildContext context) {
+    final colorScheme = Theme.of(context).colorScheme;
+
     return Scaffold(
-      backgroundColor: AppColorScheme.darkBackground,
+      backgroundColor: colorScheme.background,
       body: Column(
         children: [
           // 公共顶部导航栏
@@ -79,13 +80,16 @@ class _TopAppBar extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    final colorScheme = Theme.of(context).colorScheme;
+    final isDark = Theme.of(context).brightness == Brightness.dark;
+
     return Container(
       height: 64,
       decoration: BoxDecoration(
-        color: AppColorScheme.darkSurfaceBright.withValues(alpha: 0.4),
+        color: colorScheme.surfaceBright.withOpacity(0.4),
         boxShadow: [
           BoxShadow(
-            color: AppColorScheme.darkPrimary.withValues(alpha: 0.06),
+            color: colorScheme.primary.withOpacity(isDark ? 0.15 : 0.08),
             blurRadius: 64,
             offset: const Offset(0, 32),
           ),
@@ -111,15 +115,15 @@ class _TopAppBar extends StatelessWidget {
                           decoration: BoxDecoration(
                             shape: BoxShape.circle,
                             border: Border.all(
-                              color: AppColorScheme.darkOutlineVariant.withValues(alpha: 0.2),
+                              color: colorScheme.outlineVariant.withOpacity(0.2),
                             ),
                           ),
                           child: CircleAvatar(
-                            backgroundColor: AppColorScheme.darkSurfaceHigh,
+                            backgroundColor: colorScheme.surfaceContainerHigh,
                             child: Text(
                               auth.user?.avatarText ?? 'U',
-                              style: const TextStyle(
-                                color: AppColorScheme.darkPrimary,
+                              style: TextStyle(
+                                color: colorScheme.primary,
                                 fontWeight: FontWeight.bold,
                                 fontSize: 12,
                               ),
@@ -128,10 +132,10 @@ class _TopAppBar extends StatelessWidget {
                         ),
                         const SizedBox(width: 12),
                         // 标题
-                        const Text(
+                        Text(
                           '模拟所',
                           style: TextStyle(
-                            color: AppColorScheme.darkPrimary,
+                            color: colorScheme.primary,
                             fontWeight: FontWeight.w900,
                             letterSpacing: -0.5,
                             fontSize: 16,
@@ -173,13 +177,15 @@ class _IconBtn extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    final colorScheme = Theme.of(context).colorScheme;
+
     return GestureDetector(
       onTap: onTap,
       child: Container(
         padding: const EdgeInsets.all(8),
         child: Icon(
           icon,
-          color: AppColorScheme.darkOnSurfaceVariant,
+          color: colorScheme.onSurfaceVariant,
           size: 22,
         ),
       ),
@@ -201,18 +207,20 @@ class _BottomNavBar extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    final colorScheme = Theme.of(context).colorScheme;
+
     return Container(
       decoration: BoxDecoration(
-        color: AppColorScheme.darkSurfaceLow.withValues(alpha: 0.8),
+        color: colorScheme.surfaceContainerLow.withOpacity(0.8),
         borderRadius: const BorderRadius.vertical(top: Radius.circular(32)),
         border: Border(
           top: BorderSide(
-            color: AppColorScheme.darkOutlineVariant.withValues(alpha: 0.15),
+            color: colorScheme.outlineVariant.withOpacity(0.15),
           ),
         ),
         boxShadow: [
           BoxShadow(
-            color: Colors.black.withValues(alpha: 0.5),
+            color: Colors.black.withOpacity(0.5),
             blurRadius: 40,
             offset: const Offset(0, -10),
           ),
@@ -257,7 +265,8 @@ class _NavItemWidget extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    final color = isSelected ? AppColorScheme.darkPrimary : AppColorScheme.darkOnSurfaceVariant;
+    final colorScheme = Theme.of(context).colorScheme;
+    final color = isSelected ? colorScheme.primary : colorScheme.onSurfaceVariant;
 
     return GestureDetector(
       onTap: onTap,
@@ -267,11 +276,11 @@ class _NavItemWidget extends StatelessWidget {
         padding: const EdgeInsets.all(12),
         decoration: isSelected
             ? BoxDecoration(
-                color: AppColorScheme.darkPrimary.withValues(alpha: 0.1),
+                color: colorScheme.primary.withOpacity(0.1),
                 borderRadius: BorderRadius.circular(16),
                 boxShadow: [
                   BoxShadow(
-                    color: AppColorScheme.darkPrimary.withValues(alpha: 0.3),
+                    color: colorScheme.primary.withOpacity(0.3),
                     blurRadius: 15,
                     spreadRadius: 0,
                   ),