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/Livewire/Auth/Register.php

@@ -2,6 +2,7 @@
 
 namespace App\Livewire\Auth;
 
+use Illuminate\Validation\Rules\Password;
 use App\Models\User;
 use Illuminate\Auth\Events\Registered;
 use Illuminate\Support\Facades\Auth;
@@ -29,7 +30,7 @@ class Register extends Component
         $validated = $this->validate([
             'name' => ['required', 'string', 'max:255'],
             'email' => ['required', 'string', 'lowercase', 'email:rfc,dns', 'max:255', 'indisposable', 'unique:'.User::class],
-            'password' => ['required', 'string', 'confirmed', Rules\Password::defaults()],
+            'password' => ['required', 'string', 'confirmed', Password::defaults()],
         ]);
 
         $validated['password'] = Hash::make($validated['password']);