feat: festival/series model with sub-events, cross-event sections, tab navigation, SectionsShiftsPanel extraction

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

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

@@ -26,6 +26,7 @@ final class ShiftController extends Controller
 
         $shifts = $section->shifts()
             ->with(['timeSlot', 'location'])
+            ->withCount(['shiftAssignments as filled_slots' => fn ($q) => $q->where('status', 'approved')])
             ->get();
 
         return ShiftResource::collection($shifts);
@@ -84,13 +85,11 @@ final class ShiftController extends Controller
             }
         }
 
-        $autoApprove = $section->crew_auto_accepts;
-
         $assignment = $shift->shiftAssignments()->create([
             'person_id' => $personId,
             'time_slot_id' => $shift->time_slot_id,
-            'status' => $autoApprove ? 'approved' : 'approved',
-            'auto_approved' => $autoApprove,
+            'status' => 'approved',
+            'auto_approved' => false,
             'assigned_by' => $request->user()->id,
             'assigned_at' => now(),
             'approved_at' => now(),