style: minor formatting improvements

- Improved code readability
- Adjusted spacing and line breaks

Author: fulleni

lib/src/middlewares/authentication_middleware.dart

@@ -119,7 +119,9 @@ Middleware requireAuthentication() {
       }
       // If user exists, proceed to the handler
       print('Authentication check passed for user: ${user.id}');
-      return handler(context.provide<User>(() => user)); // Provide non-nullable User
+      return handler(
+        context.provide<User>(() => user),
+      ); // Provide non-nullable User
     };
   };
 }

lib/src/services/auth_service.dart

@@ -216,14 +216,16 @@ class AuthService {
       // Invalidate the token using the AuthTokenService
       await _authTokenService.invalidateToken(token);
       print(
-          '[AuthService] Token invalidation logic executed for user $userId.',);
+        '[AuthService] Token invalidation logic executed for user $userId.',
+      );
     } on HtHttpException catch (_) {
       // Propagate known exceptions from the token service
       rethrow;
     } catch (e) {
       // Catch unexpected errors during token invalidation
       print(
-          '[AuthService] Error during token invalidation for user $userId: $e',);
+        '[AuthService] Error during token invalidation for user $userId: $e',
+      );
       throw const OperationFailedException(
         'Failed server-side sign-out: Token invalidation failed.',
       );

test/src/services/jwt_auth_token_service_test.dart

@@ -29,7 +29,8 @@ void main() {
     setUpAll(() {
       // Register fallback values for argument matchers
       registerFallbackValue(
-          const User(id: 'fallback', isAnonymous: true, isAdmin: false),);
+        const User(id: 'fallback', isAnonymous: true, isAdmin: false),
+      );
       // Register fallback for DateTime if needed for blacklist mock
       registerFallbackValue(DateTime(2024));
     });