feat: entité Website liée à Customer avec UUID, type et state machine

Entity Website :
- customer (ManyToOne, CASCADE) : client propriétaire
- name : nom du site
- uuid : UUID v4 auto-généré (unique, 36 chars)
- type : vitrine | ecommerce
- state : created → install_progress → open → suspended → closed
- createdAt / updatedAt (auto sur setState)
- isOpen() : vérifie si state === open

WebsiteTest (5 tests, 20 assertions) :
- testConstructor : valeurs par défaut, uuid 36 chars, type vitrine
- testConstructorEcommerce : type ecommerce
- testSetters : name, type, updatedAt
- testState : transitions created→install_progress→open→suspended→closed
- testUuidUnique : 2 sites ont des uuid différents

Dépendance : symfony/uid ajouté pour Uuid::v4()
Migration : CREATE TABLE website avec FK customer, uuid unique

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

tests/Entity/WebsiteTest.php

@@ -0,0 +1,87 @@
+<?php
+
+namespace App\Tests\Entity;
+
+use App\Entity\Customer;
+use App\Entity\User;
+use App\Entity\Website;
+use PHPUnit\Framework\TestCase;
+
+class WebsiteTest extends TestCase
+{
+    private function createCustomer(): Customer
+    {
+        $user = new User();
+        $user->setEmail('c@t.com');
+        $user->setFirstName('C');
+        $user->setLastName('T');
+        $user->setPassword('h');
+
+        return new Customer($user);
+    }
+
+    public function testConstructor(): void
+    {
+        $customer = $this->createCustomer();
+        $site = new Website($customer, 'Mon Site');
+
+        $this->assertNull($site->getId());
+        $this->assertSame($customer, $site->getCustomer());
+        $this->assertSame('Mon Site', $site->getName());
+        $this->assertSame(36, \strlen($site->getUuid()));
+        $this->assertSame(Website::TYPE_VITRINE, $site->getType());
+        $this->assertSame(Website::STATE_CREATED, $site->getState());
+        $this->assertInstanceOf(\DateTimeImmutable::class, $site->getCreatedAt());
+        $this->assertNull($site->getUpdatedAt());
+    }
+
+    public function testConstructorEcommerce(): void
+    {
+        $site = new Website($this->createCustomer(), 'Boutique', Website::TYPE_ECOMMERCE);
+        $this->assertSame(Website::TYPE_ECOMMERCE, $site->getType());
+    }
+
+    public function testSetters(): void
+    {
+        $site = new Website($this->createCustomer(), 'Test');
+
+        $site->setName('Nouveau nom');
+        $this->assertSame('Nouveau nom', $site->getName());
+
+        $site->setType(Website::TYPE_ECOMMERCE);
+        $this->assertSame(Website::TYPE_ECOMMERCE, $site->getType());
+
+        $now = new \DateTimeImmutable();
+        $site->setUpdatedAt($now);
+        $this->assertSame($now, $site->getUpdatedAt());
+    }
+
+    public function testState(): void
+    {
+        $site = new Website($this->createCustomer(), 'Test');
+        $this->assertFalse($site->isOpen());
+
+        $site->setState(Website::STATE_INSTALL_PROGRESS);
+        $this->assertSame(Website::STATE_INSTALL_PROGRESS, $site->getState());
+        $this->assertFalse($site->isOpen());
+
+        $site->setState(Website::STATE_OPEN);
+        $this->assertTrue($site->isOpen());
+        $this->assertInstanceOf(\DateTimeImmutable::class, $site->getUpdatedAt());
+
+        $site->setState(Website::STATE_SUSPENDED);
+        $this->assertFalse($site->isOpen());
+
+        $site->setState(Website::STATE_CLOSED);
+        $this->assertFalse($site->isOpen());
+    }
+
+    public function testUuidUnique(): void
+    {
+        $customer = $this->createCustomer();
+        $site1 = new Website($customer, 'Site 1');
+        $site2 = new Website($customer, 'Site 2');
+
+        $this->assertNotSame($site1->getUuid(), $site2->getUuid());
+    }
+}