Incoming and outgoing channel messages.

Adds a standalone authenticated localhost messaging bridge and saved scenarios for channel discovery, incoming checks, status, isolated replies and outgoing messages. Incoming messages automatically run a fresh tool-less reply writer. Ask prepares the exact destination/text for a host decision; boot-selected YOLO sends automatically. Durable claims, signed proposals and idempotent send receipts prevent duplicate replies and preserve interrupted work for operator review. The initial dummy-discord transport is entirely local; no Discord account or real recipient is contacted. Agent and record...