ce-compound learning from the live-output/steering work: push-channel-
alongside-pull-contract, void-safe detached turns, inactivity watchdog,
transient liveActivity + persisted trace, replay suppression. Also adds a
"Compound Engineering sessions" cluster to CONCEPTS.md and refreshes the
plugin reference doc's Sessions section with the new transport behaviors.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Document the trigger-layer gating bug fixed in this PR under
docs/solutions/logic-errors/, seed CONCEPTS.md with the merge-lifecycle
vocabulary, and surface both knowledge stores in AGENTS.md's reference
docs index.
