feat: dynamic role-based permission system

- Add permissions & role_permissions tables with migration
- Add PermissionMiddleware for route-level access control
- Add CheckRole middleware for role-based fallback
- Add PermissionController with UI (Settings > Hak Akses Role)
- Add @canPermission Blade directive for view-level checks
- Convert all routes to use dynamic permission middleware
- Add canPermission() method to User model
- All access rights configurable via admin UI

app/Http/Middleware/CheckRole.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace App\Http\Middleware;
+
+use Closure;
+use Illuminate\Http\Request;
+use Symfony\Component\HttpFoundation\Response;
+
+class CheckRole
+{
+    /**
+     * Handle an incoming request.
+     *
+     * @param  \Closure(\Illuminate\Http\Request): (\Symfony\Component\HttpFoundation\Response)  $next
+     */
+    public function handle(Request $request, Closure $next, string ...$roles): Response
+    {
+        $user = $request->user();
+
+        if (! $user) {
+            abort(403, 'Unauthorized.');
+        }
+
+        foreach ($roles as $role) {
+            if ($user->role === $role) {
+                return $next($request);
+            }
+        }
+
+        abort(403, 'Anda tidak memiliki izin untuk mengakses halaman ini.');
+    }
+}