userfront 로그인 후 /dashboard로 이동하게 변경

userfront/test/locale_utils_test.dart

@@ -127,5 +127,32 @@ void main() {
         '/ko/signin?redirect_url=https%3A%2F%2Fa.example.com%2Fcb&redirect_uri=https%3A%2F%2Fb.example.com%2Fcb',
       );
     });
+
+    test('buildLocalizedHomePath keeps locale from uri', () {
+      expect(buildLocalizedHomePath(Uri.parse('/ko/signin')), '/ko/dashboard');
+      expect(buildLocalizedHomePath(Uri.parse('/en/profile')), '/en/dashboard');
+    });
+
+    test('buildLocalizedHomePath falls back to preferred locale', () {
+      expect(
+        buildLocalizedHomePath(Uri.parse('/signin'), preferredLocaleCode: 'ko'),
+        '/ko/dashboard',
+      );
+    });
+
+    test('buildLocalizedSigninPath keeps locale from uri', () {
+      expect(buildLocalizedSigninPath(Uri.parse('/ko')), '/ko/signin');
+      expect(buildLocalizedSigninPath(Uri.parse('/en/profile')), '/en/signin');
+    });
+
+    test('buildLocalizedSigninPath falls back to preferred locale', () {
+      expect(
+        buildLocalizedSigninPath(
+          Uri.parse('/profile'),
+          preferredLocaleCode: 'ko',
+        ),
+        '/ko/signin',
+      );
+    });
   });
 }