feat: implement AI styling foundation and billing scope rework

tests/Unit/PackageResourceFeatureLabelTest.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace Tests\Unit;
+
+use App\Filament\Resources\PackageResource;
+use Tests\TestCase;
+
+class PackageResourceFeatureLabelTest extends TestCase
+{
+    public function test_it_formats_ai_styling_feature_label_for_display(): void
+    {
+        $formatted = PackageResource::formatFeaturesForDisplay(['ai_styling', 'custom_branding']);
+
+        $this->assertSame('AI-Styling, Eigenes Branding', $formatted);
+    }
+}