Redirect landing to login, add registration toggle

Changes:
- Landing page (/) now redirects to /login
- Added 'Enable User Registration' setting (off by default)
- Created CheckRegistrationEnabled middleware
- Registration routes blocked when setting is disabled
- Admin can toggle registration in Settings > System

src/app/Filament/Pages/Settings.php

@@ -31,6 +31,7 @@ public function mount(): void
         $siteDescription = Setting::get('site_description');
         $contactEmail = Setting::get('contact_email');
         $maintenanceMode = Setting::get('maintenance_mode', false);
+        $enableRegistration = Setting::get('enable_registration', false);
 
         $this->form->fill([
             'site_name' => is_string($siteName) ? $siteName : config('app.name'),
@@ -41,6 +42,7 @@ public function mount(): void
             'site_description' => is_string($siteDescription) || is_null($siteDescription) ? $siteDescription : '',
             'contact_email' => is_string($contactEmail) || is_null($contactEmail) ? $contactEmail : '',
             'maintenance_mode' => is_bool($maintenanceMode) ? $maintenanceMode : false,
+            'enable_registration' => is_bool($enableRegistration) ? $enableRegistration : false,
         ]);
     }
 
@@ -87,6 +89,10 @@ public function form(Form $form): Form
 
                 Forms\Components\Section::make('System')
                     ->schema([
+                        Forms\Components\Toggle::make('enable_registration')
+                            ->label('Enable User Registration')
+                            ->helperText('Allow new users to register. When disabled, only admins can create users.'),
+                        
                         Forms\Components\Toggle::make('maintenance_mode')
                             ->label('Maintenance Mode')
                             ->helperText('Enable to put the site in maintenance mode'),
@@ -116,6 +122,7 @@ public function save(): void
         Setting::set('site_description', $data['site_description'] ?? '');
         Setting::set('contact_email', $data['contact_email'] ?? '');
         Setting::set('maintenance_mode', $data['maintenance_mode'] ?? false, 'boolean');
+        Setting::set('enable_registration', $data['enable_registration'] ?? false, 'boolean');
 
         Notification::make()
             ->title('Settings saved successfully')

src/app/Http/Middleware/CheckRegistrationEnabled.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace App\Http\Middleware;
+
+use App\Models\Setting;
+use Closure;
+use Illuminate\Http\Request;
+use Symfony\Component\HttpFoundation\Response;
+
+class CheckRegistrationEnabled
+{
+    /**
+     * Handle an incoming request.
+     * Block registration routes if registration is disabled in settings.
+     */
+    public function handle(Request $request, Closure $next): Response
+    {
+        $registrationEnabled = Setting::get('enable_registration', false);
+
+        if (!$registrationEnabled) {
+            abort(403, 'User registration is currently disabled. Please contact an administrator.');
+        }
+
+        return $next($request);
+    }
+}

src/app/Providers/AppServiceProvider.php

@@ -30,6 +30,7 @@ public function boot(): void
                     'secondary_color' => Setting::get('secondary_color', '#8b5cf6'),
                     'accent_color' => Setting::get('accent_color', '#10b981'),
                     'description' => Setting::get('site_description'),
+                    'enable_registration' => Setting::get('enable_registration', false),
                 ]);
             } catch (\Exception $e) {
                 $view->with('siteSettings', [
@@ -39,6 +40,7 @@ public function boot(): void
                     'secondary_color' => '#8b5cf6',
                     'accent_color' => '#10b981',
                     'description' => null,
+                    'enable_registration' => false,
                 ]);
             }
         });

src/bootstrap/app.php

@@ -12,7 +12,9 @@
         health: '/up',
     )
     ->withMiddleware(function (Middleware $middleware) {
-        //
+        $middleware->alias([
+            'registration.enabled' => \App\Http\Middleware\CheckRegistrationEnabled::class,
+        ]);
     })
     ->withExceptions(function (Exceptions $exceptions) {
         //

src/routes/auth.php

@@ -12,10 +12,12 @@
 use Illuminate\Support\Facades\Route;
 
 Route::middleware('guest')->group(function () {
-    Route::get('register', [RegisteredUserController::class, 'create'])
-        ->name('register');
+    Route::middleware('registration.enabled')->group(function () {
+        Route::get('register', [RegisteredUserController::class, 'create'])
+            ->name('register');
 
-    Route::post('register', [RegisteredUserController::class, 'store']);
+        Route::post('register', [RegisteredUserController::class, 'store']);
+    });
 
     Route::get('login', [AuthenticatedSessionController::class, 'create'])
         ->name('login');

src/routes/web.php

@@ -4,7 +4,7 @@
 use Illuminate\Support\Facades\Route;
 
 Route::get('/', function () {
-    return view('welcome');
+    return redirect()->route('login');
 });
 
 Route::get('/dashboard', function () {