Implement project memberships teams and permission model

tests/Feature/Models/UserTest.php

@@ -2,6 +2,7 @@
 
 namespace Tests\Feature\Models;
 
+use App\Models\Team;
 use App\Models\User;
 use Database\Seeders\UserSeeder;
 use Illuminate\Foundation\Testing\RefreshDatabase;
@@ -48,4 +49,17 @@ class UserTest extends TestCase
             'is_admin' => false,
         ]);
     }
+
+    /**
+     * Ensure users can belong to teams.
+     */
+    public function test_users_can_belong_to_teams(): void
+    {
+        $user = User::factory()->create();
+        $teams = Team::factory()->count(2)->create();
+
+        $user->teams()->sync($teams->modelKeys());
+
+        $this->assertCount(2, $user->fresh()->teams);
+    }
 }