Handle non-JSON responses in JWT validation middleware

Updated the ValidateJwt middleware to return a plain text 'Unauthorized' response for non-JSON requests, while preserving the JSON error response for requests expecting JSON. This improves compatibility with clients that do not expect JSON responses.

Author: KroderDev

src/Http/Middleware/ValidateJwt.php

@@ -48,7 +48,10 @@ public function handle(Request $request, Closure $next): Response
             $request->setUserResolver(fn () => $user);
 
         } catch (\Throwable $e) {
-            return response()->json(['error' => 'Invalid token', 'message' => $e->getMessage()], Response::HTTP_UNAUTHORIZED);
+            if ($request->expectsJson()) {
+                return response()->json(['error' => 'Invalid token', 'message' => $e->getMessage()], Response::HTTP_UNAUTHORIZED);
+            }
+            return response('Unauthorized', Response::HTTP_UNAUTHORIZED);
         }
 
         return $next($request);