Major UI/UX and architecture improvements

- Implemented new navigation system with NavigationProvider and route management
- Added adaptive theme system with ThemeProvider for better theme handling
- Introduced glassmorphism design elements (app bars, scaffolds, cards)
- Added advanced animations (spring animations, page transitions, staggered lists)
- Implemented performance optimizations (memory manager, lazy loading)
- Refactored Analysis screen into modular components
- Added floating navigation bar with haptic feedback
- Improved subscription cards with swipe actions
- Enhanced skeleton loading with better animations
- Added cached network image support
- Improved overall app architecture and code organization

🤖 Generated with [Claude Code](https://claude.ai/code)

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

lib/widgets/themed_text.dart

@@ -0,0 +1,216 @@
+import 'package:flutter/material.dart';
+import '../theme/app_colors.dart';
+
+/// 배경에 따라 자동으로 색상 대비를 조정하는 텍스트 위젯
+class ThemedText extends StatelessWidget {
+  final String text;
+  final TextStyle? style;
+  final TextAlign? textAlign;
+  final TextOverflow? overflow;
+  final int? maxLines;
+  final bool softWrap;
+  final bool forceLight;
+  final bool forceDark;
+  final double? opacity;
+  final double? fontSize;
+  final FontWeight? fontWeight;
+  final double? letterSpacing;
+  final Color? color;
+
+  const ThemedText(
+    this.text, {
+    super.key,
+    this.style,
+    this.textAlign,
+    this.overflow,
+    this.maxLines,
+    this.softWrap = true,
+    this.forceLight = false,
+    this.forceDark = false,
+    this.opacity,
+    this.fontSize,
+    this.fontWeight,
+    this.letterSpacing,
+    this.color,
+  });
+
+  /// 배경 밝기에 따른 텍스트 색상 결정
+  static Color getContrastColor(BuildContext context, {
+    bool forceLight = false,
+    bool forceDark = false,
+  }) {
+    if (forceLight) return Colors.white;
+    if (forceDark) return AppColors.textPrimary;
+    
+    final brightness = Theme.of(context).brightness;
+    final backgroundColor = Theme.of(context).scaffoldBackgroundColor;
+    
+    // 글래스모피즘 환경에서는 보통 어두운 배경 위에 밝은 텍스트
+    if (_isGlassmorphicContext(context)) {
+      return brightness == Brightness.dark 
+          ? Colors.white.withValues(alpha: 0.95)
+          : AppColors.textPrimary;
+    }
+    
+    // 일반 환경
+    return brightness == Brightness.dark 
+        ? Colors.white 
+        : AppColors.textPrimary;
+  }
+
+  /// 글래스모피즘 컨텍스트인지 확인
+  static bool _isGlassmorphicContext(BuildContext context) {
+    // 부모 위젯 체인에서 글래스모피즘 카드가 있는지 확인
+    final glassmorphic = context.findAncestorWidgetOfExactType<GlassmorphicIndicator>();
+    return glassmorphic != null;
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final textColor = color ?? getContrastColor(
+      context,
+      forceLight: forceLight,
+      forceDark: forceDark,
+    );
+    
+    final finalColor = opacity != null 
+        ? textColor.withValues(alpha: opacity!)
+        : textColor;
+    
+    final defaultStyle = DefaultTextStyle.of(context).style;
+    
+    // 개별 스타일 속성들을 병합
+    final baseStyle = TextStyle(
+      fontSize: fontSize,
+      fontWeight: fontWeight,
+      letterSpacing: letterSpacing,
+      color: finalColor,
+    );
+    
+    final effectiveStyle = defaultStyle.merge(baseStyle).merge(style);
+    
+    return Text(
+      text,
+      style: effectiveStyle,
+      textAlign: textAlign,
+      overflow: overflow,
+      maxLines: maxLines,
+      softWrap: softWrap,
+    );
+  }
+
+  /// 제목용 스타일 팩토리
+  static ThemedText headline({
+    required String text,
+    TextStyle? style,
+    bool forceLight = false,
+    bool forceDark = false,
+  }) {
+    return ThemedText(
+      text,
+      style: const TextStyle(
+        fontSize: 24,
+        fontWeight: FontWeight.bold,
+      ).merge(style),
+      forceLight: forceLight,
+      forceDark: forceDark,
+    );
+  }
+
+  /// 부제목용 스타일 팩토리
+  static ThemedText subtitle({
+    required String text,
+    TextStyle? style,
+    bool forceLight = false,
+    bool forceDark = false,
+    double opacity = 0.8,
+  }) {
+    return ThemedText(
+      text,
+      style: const TextStyle(
+        fontSize: 16,
+        fontWeight: FontWeight.w500,
+      ).merge(style),
+      forceLight: forceLight,
+      forceDark: forceDark,
+      opacity: opacity,
+    );
+  }
+
+  /// 본문용 스타일 팩토리
+  static ThemedText body({
+    required String text,
+    TextStyle? style,
+    bool forceLight = false,
+    bool forceDark = false,
+    double opacity = 0.9,
+  }) {
+    return ThemedText(
+      text,
+      style: const TextStyle(
+        fontSize: 14,
+        fontWeight: FontWeight.normal,
+      ).merge(style),
+      forceLight: forceLight,
+      forceDark: forceDark,
+      opacity: opacity,
+    );
+  }
+
+  /// 캡션용 스타일 팩토리
+  static ThemedText caption({
+    required String text,
+    TextStyle? style,
+    bool forceLight = false,
+    bool forceDark = false,
+    double opacity = 0.7,
+  }) {
+    return ThemedText(
+      text,
+      style: const TextStyle(
+        fontSize: 12,
+        fontWeight: FontWeight.normal,
+      ).merge(style),
+      forceLight: forceLight,
+      forceDark: forceDark,
+      opacity: opacity,
+    );
+  }
+}
+
+/// 글래스모피즘 컨텍스트를 표시하는 마커 위젯
+class GlassmorphicIndicator extends InheritedWidget {
+  const GlassmorphicIndicator({
+    super.key,
+    required super.child,
+  });
+
+  static GlassmorphicIndicator? of(BuildContext context) {
+    return context.dependOnInheritedWidgetOfExactType<GlassmorphicIndicator>();
+  }
+
+  @override
+  bool updateShouldNotify(GlassmorphicIndicator oldWidget) => false;
+}
+
+/// 글래스모피즘 환경에서 텍스트 색상을 자동 조정하는 래퍼
+class GlassmorphicTextWrapper extends StatelessWidget {
+  final Widget child;
+  
+  const GlassmorphicTextWrapper({
+    super.key,
+    required this.child,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return GlassmorphicIndicator(
+      child: DefaultTextStyle(
+        style: DefaultTextStyle.of(context).style.copyWith(
+          color: ThemedText.getContrastColor(context),
+        ),
+        child: child,
+      ),
+    );
+  }
+}