- Implement configureProxyEnvironment function to export CLI proxy for child processes
- Add --sapi option supporting embed, cli, fpm targets with comma-separated lists
- Introduce --php-builder option for building PHP from source with extensions and ZTS
- Update documentation for new SAPI and PHP builder configuration options
- Add PeclExtensionSource class for managing PECL extension downloads
- Modify build configuration to support PHP builder and multiple SAPI targets
- Update compiler base with new build mode validation and SAPI handling
- Enhance native build configuration with PHP builder specific library paths
- Add comprehensive test coverage for new SAPI and PHP builder features
