feat: add transactional approval workflow

app/Http/Controllers/ApprovalController.php

@@ -0,0 +1,57 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Domain\Approvals\Services\ApprovalService;
+use App\Domain\Reservations\Enums\ReservationStatus;
+use App\Domain\Reservations\Models\Reservation;
+use Illuminate\Http\RedirectResponse;
+use Illuminate\Http\Request;
+use Inertia\Inertia;
+use Inertia\Response;
+
+class ApprovalController extends Controller
+{
+    public function index(Request $request): Response
+    {
+        $filters = $request->validate(['search' => ['nullable', 'string', 'max:100']]);
+
+        return Inertia::render('approvals/index', [
+            'reservations' => Reservation::query()
+                ->with(['requester:id,name,email,department', 'items.asset:id,name,asset_tag,category_name'])
+                ->whereIn('status', [ReservationStatus::PendingApproval, ReservationStatus::AwaitingInformation])
+                ->when($filters['search'] ?? null, fn ($query, string $search) => $query
+                    ->where(fn ($query) => $query
+                        ->where('reference', 'like', "%{$search}%")
+                        ->orWhereHas('requester', fn ($query) => $query->where('name', 'like', "%{$search}%"))))
+                ->oldest('starts_at')
+                ->paginate(20)
+                ->withQueryString(),
+            'filters' => $filters,
+        ]);
+    }
+
+    public function approve(Request $request, Reservation $reservation, ApprovalService $service): RedirectResponse
+    {
+        $data = $request->validate(['comment' => ['nullable', 'string', 'max:1000']]);
+        $service->approve($reservation, $request->user(), $data['comment'] ?? null);
+
+        return back()->with('success', "Requisição {$reservation->reference} aprovada.");
+    }
+
+    public function reject(Request $request, Reservation $reservation, ApprovalService $service): RedirectResponse
+    {
+        $data = $request->validate(['comment' => ['required', 'string', 'min:5', 'max:1000']]);
+        $service->reject($reservation, $request->user(), $data['comment']);
+
+        return back()->with('success', "Requisição {$reservation->reference} rejeitada.");
+    }
+
+    public function requestInformation(Request $request, Reservation $reservation, ApprovalService $service): RedirectResponse
+    {
+        $data = $request->validate(['comment' => ['required', 'string', 'min:5', 'max:1000']]);
+        $service->requestInformation($reservation, $request->user(), $data['comment']);
+
+        return back()->with('success', "Pedido de esclarecimentos enviado para {$reservation->reference}.");
+    }
+}