feat: festival/event model frontend + topbar activeren

- Events lijst: card grid met festival/serie chips
- Festival detail: programmaonderdelen grid
- CreateSubEventDialog voor sub-events binnen festival
- EventTabsNav: breadcrumb terug naar festival
- Sessie A: festival-bewuste EventResource + children endpoint
- Topbar: zoekbalk, theme switcher, shortcuts, notificaties
- Schema v1.7 + BACKLOG.md toegevoegd
- 121 tests groen

api/app/Http/Controllers/Api/V1/EventController.php

@@ -11,34 +11,62 @@ use App\Http\Resources\Api\V1\EventResource;
 use App\Models\Event;
 use App\Models\Organisation;
 use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Request;
 use Illuminate\Http\Resources\Json\AnonymousResourceCollection;
 use Illuminate\Support\Facades\Gate;
 
 final class EventController extends Controller
 {
-    public function index(Organisation $organisation): AnonymousResourceCollection
+    public function index(Request $request, Organisation $organisation): AnonymousResourceCollection
     {
         Gate::authorize('viewAny', [Event::class, $organisation]);
 
-        $events = $organisation->events()
-            ->latest('start_date')
-            ->paginate();
+        $query = $organisation->events()
+            ->topLevel()
+            ->latest('start_date');
 
-        return EventResource::collection($events);
+        if ($request->query('type')) {
+            $query->where('event_type', $request->query('type'));
+        }
+
+        if ($request->boolean('include_children')) {
+            $query->with('children');
+        }
+
+        return EventResource::collection($query->paginate());
     }
 
     public function show(Organisation $organisation, Event $event): JsonResponse
     {
         Gate::authorize('view', [$event, $organisation]);
 
-        return $this->success(new EventResource($event->load('organisation')));
+        $event->load(['organisation', 'children', 'parent'])
+            ->loadCount('children');
+
+        return $this->success(new EventResource($event));
     }
 
     public function store(StoreEventRequest $request, Organisation $organisation): JsonResponse
     {
         Gate::authorize('create', [Event::class, $organisation]);
 
-        $event = $organisation->events()->create($request->validated());
+        $data = $request->validated();
+
+        if (!empty($data['parent_event_id'])) {
+            $parentEvent = Event::where('id', $data['parent_event_id'])
+                ->where('organisation_id', $organisation->id)
+                ->first();
+
+            if (!$parentEvent) {
+                return $this->error('Parent event does not belong to this organisation.', 422);
+            }
+        }
+
+        if (!isset($data['event_type'])) {
+            $data['event_type'] = empty($data['parent_event_id']) ? 'event' : 'event';
+        }
+
+        $event = $organisation->events()->create($data);
 
         return $this->created(new EventResource($event));
     }
@@ -51,4 +79,16 @@ final class EventController extends Controller
 
         return $this->success(new EventResource($event->fresh()));
     }
+
+    public function children(Organisation $organisation, Event $event): AnonymousResourceCollection
+    {
+        Gate::authorize('view', [$event, $organisation]);
+
+        $children = $event->children()
+            ->orderBy('start_date')
+            ->orderBy('name')
+            ->paginate();
+
+        return EventResource::collection($children);
+    }
 }