Sprint 2: Live data, CRUD modals, commitments, document upload

Frontend:
- Connect MetroMap to live Inertia props (replace hardcoded demo data)
- Drill-down navigation via router.visit for project-level maps
- Reactive breadcrumb based on map level
- Empty state when no projects exist
- Reusable Modal component with retro styling
- ProjectForm and CommitmentForm with Inertia useForm
- FormInput reusable component (text, date, textarea, select)
- FloatingActions FAB button for creating projects/themes

Backend:
- CommitmentService + CommitmentController (CRUD, mark complete, overdue)
- DocumentService + DocumentController (upload, download, delete)
- MapController now passes users and speerpunten to frontend
- 7 new routes (4 commitment, 3 document)

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

app/Http/Controllers/MapController.php

@@ -17,7 +17,9 @@ class MapController extends Controller
         $mapData = $this->mapDataService->getStrategyMap();
 
         return Inertia::render('Map/MetroMap', [
-            'mapData' => $mapData,
+            'mapData'     => $mapData,
+            'users'       => \App\Models\User::select('id', 'name')->get(),
+            'speerpunten' => \App\Models\Speerpunt::select('id', 'naam', 'thema_id')->with('thema:id,naam')->get(),
         ]);
     }
 
@@ -26,7 +28,9 @@ class MapController extends Controller
         $mapData = $this->mapDataService->getProjectMap($projectId);
 
         return Inertia::render('Map/MetroMap', [
-            'mapData' => $mapData,
+            'mapData'     => $mapData,
+            'users'       => \App\Models\User::select('id', 'name')->get(),
+            'speerpunten' => \App\Models\Speerpunt::select('id', 'naam', 'thema_id')->with('thema:id,naam')->get(),
         ]);
     }