session Directory Reference

Files
	proto_builtins.cpp
	Layer 5 (Session) - the built-in protocol registry (policy, not mechanism).
	proto_handler.h
	Layer 5 (Session) - per-protocol connection handler dispatch table.
	session.cpp
	Layer 5 (Session) - event queue processor implementation.
	session.h
	Layer 5 (Session) - event queue dispatcher and session lifecycle.
	worker.cpp
	Server worker identity - implementation.
	worker.h
	Layer 5 (Session) - server worker identity.