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/components/glass_panel.dart

@@ -61,8 +61,12 @@ class GlassPanel extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    final bgColor = backgroundColor ?? AppColorScheme.glassPanelBackground;
-    final brColor = borderColor ?? AppColorScheme.glassPanelBorder;
+    final colorScheme = Theme.of(context).colorScheme;
+    final isDark = Theme.of(context).brightness == Brightness.dark;
+    final bgColor = backgroundColor ??
+        colorScheme.surfaceBright.withOpacity(isDark ? 0.4 : 0.6);
+    final brColor = borderColor ??
+        colorScheme.outlineVariant.withOpacity(0.15);
     final br = borderRadius ?? BorderRadius.circular(AppRadius.xl);
 
     Widget content = ClipRRect(
@@ -142,8 +146,11 @@ class GlassCard extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    final colorScheme = Theme.of(context).colorScheme;
+    final isDark = Theme.of(context).brightness == Brightness.dark;
     final br = borderRadius ?? BorderRadius.circular(AppRadius.xl);
-    final glowColor = neonGlowColor ?? AppColorScheme.neonGlowPrimary;
+    final glowColor = neonGlowColor ??
+        colorScheme.primary.withOpacity(isDark ? 0.15 : 0.08);
 
     Widget card = GlassPanel(
       padding: padding ?? EdgeInsets.all(AppSpacing.md),
@@ -206,14 +213,17 @@ class GlassBottomSheet extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    final colorScheme = Theme.of(context).colorScheme;
+    final isDark = Theme.of(context).brightness == Brightness.dark;
+
     return Container(
       decoration: BoxDecoration(
-        color: AppColorScheme.glassPanelBackground,
+        color: colorScheme.surfaceBright.withOpacity(isDark ? 0.4 : 0.6),
         borderRadius: const BorderRadius.vertical(
           top: Radius.circular(AppRadius.xxl),
         ),
         border: Border.all(
-          color: AppColorScheme.glassPanelBorder,
+          color: colorScheme.outlineVariant.withOpacity(0.15),
         ),
       ),
       child: ClipRRect(
@@ -231,7 +241,7 @@ class GlassBottomSheet extends StatelessWidget {
                 width: 40,
                 height: 4,
                 decoration: BoxDecoration(
-                  color: AppColorScheme.darkOutlineVariant.withValues(alpha: 0.5),
+                  color: colorScheme.outlineVariant.withOpacity(0.5),
                   borderRadius: BorderRadius.circular(2),
                 ),
               ),
@@ -250,10 +260,10 @@ class GlassBottomSheet extends StatelessWidget {
                         Expanded(
                           child: Text(
                             title!,
-                            style: const TextStyle(
+                            style: TextStyle(
                               fontSize: 18,
                               fontWeight: FontWeight.bold,
-                              color: AppColorScheme.darkOnSurface,
+                              color: colorScheme.onSurface,
                             ),
                           ),
                         ),
@@ -263,14 +273,14 @@ class GlassBottomSheet extends StatelessWidget {
                           child: Container(
                             padding: EdgeInsets.all(AppSpacing.sm),
                             decoration: BoxDecoration(
-                              color: AppColorScheme.darkOutlineVariant
-                                  .withValues(alpha: 0.2),
+                              color: colorScheme.outlineVariant
+                                  .withOpacity(0.2),
                               shape: BoxShape.circle,
                             ),
-                            child: const Icon(
+                            child: Icon(
                               Icons.close,
                               size: 18,
-                              color: AppColorScheme.darkOnSurfaceVariant,
+                              color: colorScheme.onSurfaceVariant,
                             ),
                           ),
                         ),