Release v1.0.0
Introduces the MessageTransport facade (§6.6.11) splitting WebSocket + ack
plumbing from chat UI: new transport/ module with relay + mock impls, new
SQLite-backed store (dedup, seq watermark, outbound state).
Also: removes inner-ack emission from the CLI per §6.6.5 ("in v1 only the
plugin emits inner ack frames"). The CLI is an app and now stays silent on
the ack channel.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>