sync: pull axentx-master c14673b — twin harvest worker

feat(v2-round6): TruthRL + Validator-RLVR + LoraHub + Self-Refine + Letta + 9-cluster configs

feat(sanitize): training data leak filter — drop rows w/ FS paths, LLM-provider tags, secrets, PII

fix: 16-shard write contention crashed Space — flock + backoff retry

fix: dedup.db corruption was crashing all 16 ingest shards

fix: 4 chain bugs found via /selftest+ chain audit

feat: RAG fully wired \u2014 FTS5 + vector hybrid retrieval, no train needed for now

feat: long-context + code-bench boost (anti-rework via repo-map injection)

feat: central dedup store \u2014 single source of truth across ALL writers

fix: strip Mac /usr/bin/* hardcoded paths + expand dataset-enrich to 21 sources

feat: migrate $HOME/.claude/* to $HOME/.surrogate/* (clean separation from Claude Code)