🎉 **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`).

app/Console/Commands/Database/UpdateMeetupActivity.php

@@ -0,0 +1,64 @@
+<?php
+
+namespace App\Console\Commands\Database;
+
+use App\Models\Meetup;
+use App\Models\MeetupEvent;
+use Carbon\CarbonInterface;
+use Illuminate\Console\Attributes\Description;
+use Illuminate\Console\Attributes\Signature;
+use Illuminate\Console\Command;
+use Illuminate\Support\Facades\Date;
+
+#[Signature('meetups:update-activity')]
+#[Description('Recalculate is_active and last_event_at for every meetup based on its events.')]
+class UpdateMeetupActivity extends Command
+{
+    public function handle(): int
+    {
+        $threshold = now()->subYear();
+
+        Meetup::query()->chunkById(200, function ($meetups) use ($threshold) {
+            foreach ($meetups as $meetup) {
+                $this->updateMeetup($meetup, $threshold);
+            }
+        });
+
+        $this->info('Meetup activity flags updated.');
+
+        return Command::SUCCESS;
+    }
+
+    private function updateMeetup(Meetup $meetup, CarbonInterface $threshold): void
+    {
+        $lastEventAt = MeetupEvent::query()
+            ->where('meetup_id', $meetup->id)
+            ->where('start', '<=', now())
+            ->max('start');
+
+        $lastEventAt = $lastEventAt ? Date::parse($lastEventAt) : null;
+
+        $hasFutureEvent = MeetupEvent::query()
+            ->where('meetup_id', $meetup->id)
+            ->where('start', '>', now())
+            ->exists();
+
+        $hasActiveRecurrence = MeetupEvent::query()
+            ->where('meetup_id', $meetup->id)
+            ->whereNotNull('recurrence_type')
+            ->where(function ($query) {
+                $query->whereNull('recurrence_end_date')
+                    ->orWhere('recurrence_end_date', '>=', now());
+            })
+            ->exists();
+
+        $isActive = ($lastEventAt && $lastEventAt->greaterThanOrEqualTo($threshold))
+            || $hasFutureEvent
+            || $hasActiveRecurrence;
+
+        $meetup->forceFill([
+            'is_active' => $isActive,
+            'last_event_at' => $lastEventAt,
+        ])->saveQuietly();
+    }
+}

app/Models/Meetup.php

@@ -41,6 +41,8 @@ class Meetup extends Model implements HasMedia
         'community',
         'github_data',
         'visible_on_map',
+        'is_active',
+        'last_event_at',
     ];
 
     /**
@@ -53,6 +55,8 @@ class Meetup extends Model implements HasMedia
         'city_id' => 'integer',
         'github_data' => 'json',
         'simplified_geojson' => 'array',
+        'is_active' => 'boolean',
+        'last_event_at' => 'datetime',
     ];
 
     protected static function booted()