a6f44e5bb4
Pure deterministic Layer-4 aggregation module (spec §6) for the /brain-retro skill. Exports: dedupeEpisodes, inferOutcome, groupEpisodesToTasks, findCausalChains, buildFactorMatrix, analyze. Read-only — never writes JSONL. 11/11 tests green. CLI smoke: 10 real episodes → valid JSON with all 5 keys. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>