feat: Initial Laravel API-only starter kit

- Laravel 12 with Sanctum authentication
- API versioning with grazulex/laravel-apiroute
- spatie/laravel-query-builder for filtering/sorting
- spatie/laravel-data for DTOs
- dedoc/scramble for auto API documentation
- Pest PHP testing framework
- Docker development environment
- Standardized JSON API responses
- Rate limiting and CORS configuration
- Comprehensive README documentation

docker/php/local.ini

@@ -0,0 +1,4 @@
+upload_max_filesize = 40M
+post_max_size = 40M
+memory_limit = 256M
+max_execution_time = 600