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/DocumentController.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\Document;
+use App\Services\DocumentService;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Storage;
+
+class DocumentController extends Controller
+{
+    public function __construct(
+        private DocumentService $documentService
+    ) {}
+
+    public function store(Request $request)
+    {
+        $validated = $request->validate([
+            'titel'      => 'required|string|max:255',
+            'bestand'    => 'required|file|max:20480',
+            'project_id' => 'required|exists:projects,id',
+            'fase_id'    => 'nullable|exists:fases,id',
+            'type'       => 'nullable|string|max:50',
+        ]);
+
+        $this->documentService->upload($validated, $request->file('bestand'));
+
+        return back()->with('success', 'Document geupload.');
+    }
+
+    public function download(Document $document)
+    {
+        abort_unless(
+            Storage::disk('local')->exists($document->bestandspad),
+            404,
+            'Bestand niet gevonden.'
+        );
+
+        return Storage::disk('local')->download(
+            $document->bestandspad,
+            $document->titel
+        );
+    }
+
+    public function destroy(Document $document)
+    {
+        $this->documentService->delete($document);
+
+        return back()->with('success', 'Document verwijderd.');
+    }
+}