Honor system settings for QR, audit log, pagination, and readonly mode

app/Http/Middleware/MaintenanceReadOnly.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace App\Http\Middleware;
+
+use Closure;
+use Illuminate\Http\Request;
+use Symfony\Component\HttpFoundation\Response;
+
+class MaintenanceReadOnly
+{
+    public function handle(Request $request, Closure $next): Response
+    {
+        if (config('system.maintenance.readonly_mode', false) && ! $request->isMethodSafe()) {
+            return redirect()->back()->withErrors(['readonly' => 'Sistem sedang dalam mode read-only (maintenance).']);
+        }
+
+        return $next($request);
+    }
+}