🗓️ Add MeetupEventFactory, implement rate limiting for calendar downloads, and enhance test coverage

- **Added:** `MeetupEventFactory` for generating test data.
- **Implemented:** Rate limiting (`throttle:calendar`) for `stream-calendar` routes to prevent abuse.
- **Enhanced:** `DownloadMeetupCalendar` controller with validation and cleaner query structure.
- **Added:** Feature tests for calendar downloading, invalid input handling, and rate limiting.

app/Providers/AppServiceProvider.php

@@ -3,11 +3,14 @@
 namespace App\Providers;
 
 use App\Support\Carbon;
+use Illuminate\Cache\RateLimiting\Limit;
 use Illuminate\Contracts\Auth\Authenticatable;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Foundation\Events\DiagnosingHealth;
+use Illuminate\Http\Request;
 use Illuminate\Support\Facades\Date;
 use Illuminate\Support\Facades\Event;
+use Illuminate\Support\Facades\RateLimiter;
 use Illuminate\Support\Facades\Route;
 use Illuminate\Support\ServiceProvider;
 use Laravel\Nightwatch\Facades\Nightwatch;
@@ -31,6 +34,8 @@ class AppServiceProvider extends ServiceProvider
      */
     public function boot(): void
     {
+        $this->configureRateLimiting();
+
         Livewire::setUpdateRoute(function ($handle) {
             return Route::post('/livewire/update', $handle)
                 ->middleware(['web', Sample::rate(0)]);
@@ -46,4 +51,14 @@ class AppServiceProvider extends ServiceProvider
 
         Model::preventLazyLoading(app()->environment('local'));
     }
+
+    /**
+     * Configure the rate limiters for the application.
+     */
+    protected function configureRateLimiting(): void
+    {
+        RateLimiter::for('calendar', function (Request $request) {
+            return Limit::perMinute(60)->by($request->ip());
+        });
+    }
 }