Async Patterns Audit

Analyze PHP code for synchronous operations that should be handled asynchronously to improve response times and system resilience.

Detection Patterns

1. Email Sending in Request Cycle

// CRITICAL: Blocking email send in HTTP request
class RegistrationController
{
    public function register(Request $request): Response
    {
        $user = $this->userService->create($request->validated());
        $this->mailer->send(new WelcomeEmail($user));  // Blocks 2-5 seconds!
        return new Response('Registered', 201);
        // User waits for email server response
    }