feat: ajout champs Stripe Connect state sur Revendeur

src/Entity/Revendeur.php:
- stripeConnectState: string(30) default 'not_started', etat global
  de l'onboarding Stripe Connect du revendeur
- stripeConnectStatePayment: string(30) nullable, etat de la capacite
  de reception de paiements (enabled/disabled/pending)
- stripeConnectStatePayout: string(30) nullable, etat de la capacite
  de versement des fonds (enabled/disabled/pending)
- Getters/setters fluent pour les 3 champs

migrations/Version20260402210431.php:
- Ajout colonnes stripe_connect_state DEFAULT 'not_started',
  stripe_connect_state_payment nullable,
  stripe_connect_state_payout nullable sur la table revendeur

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

migrations/Version20260402210431.php

@@ -0,0 +1,35 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+/**
+ * Auto-generated Migration: Please modify to your needs!
+ */
+final class Version20260402210431 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return '';
+    }
+
+    public function up(Schema $schema): void
+    {
+        // this up() migration is auto-generated, please modify it to your needs
+        $this->addSql('ALTER TABLE revendeur ADD stripe_connect_state VARCHAR(30) DEFAULT \'not_started\' NOT NULL');
+        $this->addSql('ALTER TABLE revendeur ADD stripe_connect_state_payment VARCHAR(30) DEFAULT NULL');
+        $this->addSql('ALTER TABLE revendeur ADD stripe_connect_state_payout VARCHAR(30) DEFAULT NULL');
+    }
+
+    public function down(Schema $schema): void
+    {
+        // this down() migration is auto-generated, please modify it to your needs
+        $this->addSql('ALTER TABLE revendeur DROP stripe_connect_state');
+        $this->addSql('ALTER TABLE revendeur DROP stripe_connect_state_payment');
+        $this->addSql('ALTER TABLE revendeur DROP stripe_connect_state_payout');
+    }
+}