Implement ticket creation and backlog

tests/Feature/Models/ProjectTest.php

@@ -7,6 +7,7 @@ use App\Models\Project;
 use Database\Seeders\BoardColumnSeeder;
 use Database\Seeders\ProjectSeeder;
 use Database\Seeders\ProjectTicketMetadataSeeder;
+use Database\Seeders\TicketSeeder;
 use Illuminate\Foundation\Testing\RefreshDatabase;
 use Tests\TestCase;
 
@@ -121,4 +122,23 @@ class ProjectTest extends TestCase
             $coreProject->ticketFieldDefinitions->pluck('label')->all(),
         );
     }
+
+    /**
+     * Ensure projects expose tickets ordered by descending sequence number.
+     */
+    public function test_projects_expose_tickets_ordered_by_sequence_number_desc(): void
+    {
+        $this->seed([
+            ProjectSeeder::class,
+            ProjectTicketMetadataSeeder::class,
+            TicketSeeder::class,
+        ]);
+
+        $coreProject = Project::query()->where('key', 'CORE')->firstOrFail();
+
+        $this->assertSame(
+            ['CORE-2', 'CORE-1'],
+            $coreProject->tickets->pluck('ticket_key')->all(),
+        );
+    }
 }