fix(orm): declare repositoryClass on all entities with a custom repository

On prod (opcache.preload + prod container), getRepository(Entity::class)
returned Doctrine's default repository instead of the custom one when the
entity's #[ORM\Entity] had no repositoryClass — so custom finders like
DoctorSecretaryRepository::findAllActiveBySecretary threw BadMethodCallException,
making /oauth/userinfo return 500 after login. Declare repositoryClass explicitly
on all 25 affected entities.

Also add app:create-admin command (create/promote a ROLE_ADMIN user by mobile).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/Settlement/Entity/Settlement.php

@@ -4,9 +4,10 @@ namespace App\Settlement\Entity;
 
 use App\Auth\Entity\User;
 use Doctrine\ORM\Mapping as ORM;
+use App\Settlement\Repository\SettlementRepository;
 use Symfony\Component\Uid\Uuid;
 
-#[ORM\Entity]
+#[ORM\Entity(repositoryClass: SettlementRepository::class)]
 #[ORM\Table(name: 'settlements')]
 #[ORM\Index(columns: ['user_id', 'status'], name: 'idx_settlements_user_status')]
 class Settlement