Summary by CodeRabbit

• New Features

  • In-process PHP extension and Worker bridge exposing emit_event and a Worker API for local/synchronous handling.
  • Local clients for entities and orchestrations to raise events and start instances without HTTP.

• Improvements

  • Glue migrated to worker-driven, fileless processing with provenance-aware routing and richer state/event flows.
  • Auth broadened to accept provenance objects, enabling richer provenance propagation.

• Documentation

  • Added PHP stubs and extension API reference.

• Chores/Build

  • New FrankenPHP build target and updated build flow.