#269 진행. 리다이렉트 등 파라미터 전체 전달

userfront/lib/main.dart

@@ -21,6 +21,7 @@ import 'core/services/auth_token_store.dart';
 import 'core/services/logger_service.dart';
 import 'core/notifiers/auth_notifier.dart';
 import 'core/i18n/locale_gate.dart';
+import 'core/i18n/locale_registry.dart';
 import 'core/i18n/locale_utils.dart';
 import 'core/i18n/toml_asset_loader.dart';
 import 'package:logging/logging.dart';
@@ -45,6 +46,7 @@ void main() async {
   WidgetsFlutterBinding.ensureInitialized();
   usePathUrlStrategy();
   await EasyLocalization.ensureInitialized();
+  await LocaleRegistry.initialize();
 
   // 1. Global Error Handling
   FlutterError.onError = (details) {
@@ -78,11 +80,16 @@ void main() async {
   runApp(
     // URL(/en, /ko)이 있으면 우선 적용해서 첫 렌더부터 올바른 언어로 시작합니다.
     () {
+      final supportedLocaleCodes = LocaleRegistry.supportedLocaleCodes;
+      final supportedLocales = supportedLocaleCodes
+          .map((code) => Locale(code))
+          .toList(growable: false);
+      final fallbackLocaleCode = LocaleRegistry.fallbackLocaleCode;
       final initialLocaleCode =
           extractLocaleFromPath(Uri.base) ?? resolvePreferredLocaleCode();
       return EasyLocalization(
-        supportedLocales: const [Locale('en'), Locale('ko')],
-        fallbackLocale: const Locale('en'),
+        supportedLocales: supportedLocales,
+        fallbackLocale: Locale(fallbackLocaleCode),
         startLocale: Locale(initialLocaleCode),
         saveLocale: false,
         path: 'assets/translations',
@@ -143,8 +150,13 @@ final _router = GoRouter(
                 final redirectUrl =
                     state.uri.queryParameters['redirect_uri'] ??
                     state.uri.queryParameters['redirect_url'];
-                _routerLogger.info("Navigating to /login, redirect: $redirectUrl");
-                return LoginScreen(key: state.pageKey, redirectUrl: redirectUrl);
+                _routerLogger.info(
+                  "Navigating to /login, redirect: $redirectUrl",
+                );
+                return LoginScreen(
+                  key: state.pageKey,
+                  redirectUrl: redirectUrl,
+                );
               },
             ),
             GoRoute(
@@ -153,7 +165,9 @@ final _router = GoRouter(
                 final consentChallenge =
                     state.uri.queryParameters['consent_challenge'];
                 if (consentChallenge == null) {
-                  _routerLogger.warning("Consent screen loaded without a challenge.");
+                  _routerLogger.warning(
+                    "Consent screen loaded without a challenge.",
+                  );
                   return const Scaffold(
                     body: Center(
                       child: Text('Error: Consent challenge is missing.'),
@@ -241,8 +255,7 @@ final _router = GoRouter(
                 return ErrorScreen(
                   errorId: params['id'],
                   errorCode: params['error'],
-                  description:
-                      params['error_description'] ?? params['message'],
+                  description: params['error_description'] ?? params['message'],
                 );
               },
             ),
@@ -252,9 +265,7 @@ final _router = GoRouter(
                 _routerLogger.info("Navigating to /settings (disabled)");
                 return ErrorScreen(
                   errorCode: 'settings_disabled',
-                  description: tr(
-                    'msg.userfront.settings.disabled',
-                  ),
+                  description: tr('msg.userfront.settings.disabled'),
                 );
               },
             ),
@@ -333,13 +344,7 @@ final _router = GoRouter(
     // If not logged in and trying to access a protected page, redirect to /signin
     if (!isLoggedIn) {
       _routerLogger.info("Not logged in, redirecting to /signin");
-      // Preserve OIDC challenge if present
-      final loginChallenge = state.uri.queryParameters['login_challenge'];
-      final locale = requestedLocale;
-      if (loginChallenge != null) {
-        return '/$locale/signin?login_challenge=$loginChallenge';
-      }
-      return '/$locale/signin';
+      return buildSigninRedirectPath(requestedLocale, state.uri);
     }
 
     // If logged in and trying to access login page, redirect to root (dashboard)