feat(backend) : add project relation to TaskStatus entity with migration and fixtures

Add ManyToOne project field on TaskStatus, SearchFilter for API filtering,
migration to add the column, and update fixtures to create statuses per project.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/Entity/TaskStatus.php

@@ -4,6 +4,8 @@ declare(strict_types=1);
 
 namespace App\Entity;
 
+use ApiPlatform\Doctrine\Orm\Filter\SearchFilter;
+use ApiPlatform\Metadata\ApiFilter;
 use ApiPlatform\Metadata\ApiResource;
 use ApiPlatform\Metadata\Delete;
 use ApiPlatform\Metadata\Get;
@@ -26,6 +28,7 @@ use Symfony\Component\Serializer\Attribute\Groups;
     denormalizationContext: ['groups' => ['task_status:write']],
     order: ['position' => 'ASC'],
 )]
+#[ApiFilter(SearchFilter::class, properties: ['project' => 'exact'])]
 #[ORM\Entity(repositoryClass: TaskStatusRepository::class)]
 class TaskStatus
 {
@@ -47,6 +50,11 @@ class TaskStatus
     #[Groups(['task_status:read', 'task_status:write', 'task:read'])]
     private ?int $position = 0;
 
+    #[ORM\ManyToOne(targetEntity: Project::class)]
+    #[ORM\JoinColumn(nullable: false, onDelete: 'CASCADE')]
+    #[Groups(['task_status:read', 'task_status:write'])]
+    private ?Project $project = null;
+
     public function getId(): ?int
     {
         return $this->id;
@@ -87,4 +95,16 @@ class TaskStatus
 
         return $this;
     }
+
+    public function getProject(): ?Project
+    {
+        return $this->project;
+    }
+
+    public function setProject(?Project $project): static
+    {
+        $this->project = $project;
+
+        return $this;
+    }
 }