Cleanup pass. Contracts from v0.2.0 (token namespace, tile registration, payload renderer registry) now have formal ADRs (015/016/017). ADR-009 ADR-L-NNN refs swept. VERSION_CONVENTION notes format drift.
Phase 9 ships the complete v0.1 cognitive loop: deterministic Clutch cascade, strategic Catalyst escalation with bandit-based learning, and re-injection across context windows. Four steps closed at b175874. Promoting to v0.4.0 to mark the milestone.
Corrects AGENT_TRACE_VOCABULARY.md §7.5 and §8.2 to match actual Cerebra v0.3.6 emissions for ClutchDecisionMade, CatalystInvoked, and CatalystArmSelected, closing the validator gap opened by Phase 9 Steps 1 and 3.