hermes-lcm v0.20.0

Lossless Context Management for Hermes: Lossless-Claw parity plus cross-session recall and temporal retrieval.

Highlights

Completes the five selected Lossless-Claw parity behaviors: recoverable active-replay stubs, token-bounded fresh tails, dry-run-first historical backfill, bounded externalized-payload search, and atomic threshold full sweeps.
Adds lcm_recall, lcm_recent, and lcm_load_session, with semantic and hybrid retrieval, temporal rollups, and optional proactive recall.
Keeps advanced capabilities opt-in or disabled by default, with payload search requiring an explicit content_scope and historical backfill remaining operator-invoked and dry-run-first.
Releases SQLite TEMP staging snapshots before compaction writes to avoid transaction conflicts.

#380 Stub externalized tool results in active replay
#381 Cap the protected fresh tail by tokens
#382 Add dry-run historical tool-output externalization backfill
#413 Complete the consolidated recall, temporal retrieval, payload-search, and threshold-sweep stack
#425 Release SQLite TEMP staging snapshots before compaction writes