🎉 **Introduce meetup activity management**

- Added `is_active` and `last_event_at` fields to meetups with migration.
- Enhanced UI: Display `Aktiv`/`Inaktiv` badges and last event dates across dashboard, tables, and maps.
- Introduced `/meetups:update-activity` command to manage activity flags and timestamps.
- Validated latitude/longitude to prevent `0,0` inputs in city creation and updates.
- Updated factories and tests to include meetup activity states (`active`, `inactive`).

routes/console.php

@@ -1,6 +1,7 @@
 <?php
 
 use App\Console\Commands\Database\CleanupLoginKeys;
+use App\Console\Commands\Database\UpdateMeetupActivity;
 use App\Console\Commands\Nostr\PublishUnpublishedItems;
 
 Schedule::command(CleanupLoginKeys::class)->everyFifteenMinutes();
@@ -12,3 +13,5 @@ Schedule::command(PublishUnpublishedItems::class, [
 Schedule::command(PublishUnpublishedItems::class, [
     '--model' => 'Meetup',
 ])->dailyAt('18:00');
+
+Schedule::command(UpdateMeetupActivity::class)->dailyAt('03:30');