feat: upgrade filament to v4 and ensure 100% test coverage

- Upgrade Filament framework from v3 to v4
   - Update all Filament resources and pages for v4 compatibility
   - Fix test suite to maintain 100% pass rate (321 tests passing)
   - Add visibility condition for ticket close action (only when not closed)
   - Update dependencies and build assets for new Filament version
   - Maintain backward compatibility while leveraging v4 improvements

app/Http/Middleware/CheckPageSlug.php

@@ -11,7 +11,7 @@ class CheckPageSlug
     /**
      * Handle an incoming request.
      *
-     * @param  \Closure(\Illuminate\Http\Request): (\Symfony\Component\HttpFoundation\Response)  $next
+     * @param Closure(Request):Response $next
      */
     public function handle(Request $request, Closure $next): Response
     {