Minimal egress-only server that wires Source, Registry, PeerFactory and
WHEPHandler together on a single stream id. Listens for RTP on a local
UDP port (default 127.0.0.1:10000) and serves WHEP on :8787.
Not part of the Core binary — will be demoted to an internal test helper
once M2 integrates WebRTC output into the process-graph.
