다크 모드 전역 상태와 테마 기반 추가

userfront/lib/main.dart

@@ -24,6 +24,8 @@ import 'core/services/logger_service.dart';
 import 'core/services/null_check_recovery.dart';
 import 'core/services/web_window.dart';
 import 'core/notifiers/auth_notifier.dart';
+import 'core/theme/app_theme.dart';
+import 'core/theme/theme_controller.dart';
 import 'core/i18n/locale_gate.dart';
 import 'core/i18n/locale_registry.dart';
 import 'core/i18n/locale_utils.dart';
@@ -106,6 +108,7 @@ void main() async {
 
   // 0. Initialize Logger
   LoggerService.init();
+  await ThemeController.instance.restore();
 
   // 폰트를 먼저 로딩해서 렌더링 깨짐(FOIT/FOUT) 최소화
   await _loadBundledFonts();
@@ -366,50 +369,25 @@ class BaronSSOApp extends StatelessWidget {
     final locale =
         localization?.currentLocale ?? Locale(resolvePreferredLocaleCode());
 
-    return MaterialApp.router(
-      title: tr('ui.userfront.app_title'),
-      localizationsDelegates: delegates,
-      supportedLocales: supportedLocales,
-      locale: locale,
-      builder: (context, child) {
-        return Stack(
-          children: [if (child != null) child, const ToastViewport()],
+    return ValueListenableBuilder<ThemeMode>(
+      valueListenable: ThemeController.instance,
+      builder: (context, themeMode, _) {
+        return MaterialApp.router(
+          title: tr('ui.userfront.app_title'),
+          localizationsDelegates: delegates,
+          supportedLocales: supportedLocales,
+          locale: locale,
+          builder: (context, child) {
+            return Stack(
+              children: [if (child != null) child, const ToastViewport()],
+            );
+          },
+          theme: buildLightTheme(),
+          darkTheme: buildDarkTheme(),
+          themeMode: themeMode,
+          routerConfig: _router,
         );
       },
-      theme: ThemeData(
-        colorScheme: ColorScheme.fromSeed(
-          seedColor: const Color(0xFF1A1F2C), // Dark Navy/Black base
-          brightness: Brightness.light,
-        ),
-        useMaterial3: true,
-        fontFamily: 'NotoSansKR',
-        pageTransitionsTheme: const PageTransitionsTheme(
-          builders: {
-            TargetPlatform.android: NoTransitionsBuilder(),
-            TargetPlatform.iOS: NoTransitionsBuilder(),
-            TargetPlatform.linux: NoTransitionsBuilder(),
-            TargetPlatform.macOS: NoTransitionsBuilder(),
-            TargetPlatform.windows: NoTransitionsBuilder(),
-            TargetPlatform.fuchsia: NoTransitionsBuilder(),
-          },
-        ),
-      ),
-      routerConfig: _router,
     );
   }
 }
-
-class NoTransitionsBuilder extends PageTransitionsBuilder {
-  const NoTransitionsBuilder();
-
-  @override
-  Widget buildTransitions<T>(
-    PageRoute<T> route,
-    BuildContext context,
-    Animation<double> animation,
-    Animation<double> secondaryAnimation,
-    Widget child,
-  ) {
-    return child;
-  }
-}