chore: remove the seed command and the dev login

src/Controller/Dev/LoginController.php

@@ -1,38 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace App\Controller\Dev;
-
-use App\Repository\UserRepository;
-use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
-use Symfony\Component\DependencyInjection\Attribute\When;
-use Symfony\Component\HttpFoundation\Response;
-
-/**
- * Dev-only "log in as" picker, standing in for OAuth2 against myep until the client is
- * registered there (plan step 6).
- *
- * Deliberately carries no #[Route] attribute: the routes are declared in
- * config/routes/dev_login.yaml under `when@dev`, so this cannot be reached in any other
- * environment even if the class were somehow registered.
- */
-#[When('dev')]
-final class LoginController extends AbstractController
-{
-    public function __construct(private readonly UserRepository $users)
-    {
-    }
-
-    public function index(): Response
-    {
-        if ($this->getUser()) {
-            return $this->redirectToRoute('app_dashboard');
-        }
-
-        // POST never reaches here -- DevLoginAuthenticator intercepts it on the firewall.
-        return $this->render('dev/login.html.twig', [
-            'users' => $this->users->findBy([], ['name' => 'ASC']),
-        ]);
-    }
-}