feat: add env-aware client log policy and const lint fixes

userfront/lib/features/auth/presentation/forgot_password_screen.dart

@@ -98,7 +98,10 @@ class _ForgotPasswordScreenState extends State<ForgotPasswordScreen> {
             children: [
               Text(
                 tr('ui.userfront.forgot.heading'),
-                style: TextStyle(fontSize: 28, fontWeight: FontWeight.bold),
+                style: const TextStyle(
+                  fontSize: 28,
+                  fontWeight: FontWeight.bold,
+                ),
                 textAlign: TextAlign.center,
               ),
               if (_drySendEnabled) ...[

userfront/lib/features/auth/presentation/login_success_screen.dart

@@ -23,7 +23,10 @@ class LoginSuccessScreen extends StatelessWidget {
               const SizedBox(height: 24),
               Text(
                 tr('ui.userfront.login_success.title'),
-                style: TextStyle(fontSize: 32, fontWeight: FontWeight.bold),
+                style: const TextStyle(
+                  fontSize: 32,
+                  fontWeight: FontWeight.bold,
+                ),
               ),
               const SizedBox(height: 16),
               Text(

userfront/lib/features/auth/presentation/reset_password_screen.dart

@@ -178,7 +178,7 @@ class _ResetPasswordScreenState extends State<ResetPasswordScreen> {
                     children: [
                       Text(
                         tr('ui.userfront.reset.subtitle'),
-                        style: TextStyle(
+                        style: const TextStyle(
                           fontSize: 28,
                           fontWeight: FontWeight.bold,
                         ),