hermes_state.py: delete every '# noqa: F401 (re-exported...)' import block (hermes_state_common/errors/guard/
readpool/sessions/fts/dbfile/wal/repair/registry + agent.context_compressor _DB_PERSISTED_MARKER_KEY); keep
only the names hermes_state.py itself uses, without noqa.
hermes_state_registry.py: drop get_shared_session_db/release_shared_session_db/close_shared_session_dbs
aliases; every caller (gateway/, tools/, tui_gateway/, cron/, mcp_serve, run_agent, tests) now imports
acquire/release/close_all/release_or_close from hermes_state_registry.
hermes_state_titles.py: drop set_auto_title_if_empty shim (title_generator keeps its getattr fallback).
Re-remove shim-only names restored by 34abf954bd: latest_user_message_row_id (tests call
latest_message_row_id(key, role='user'); role-targeting assertions kept) and get_session_activity (tests
build the snapshot via agent.session_activity.build_activity_snapshot over db.get_session(sid)).
hermes_state_wal._log_once resolves its dedupe sets as module globals instead of via hermes_state;
hermes_state_repair helpers call module globals directly (tests patch hermes_state_repair.<name>).
Frozen updater surface untouched (update_cmd_maint imports only SessionDB from hermes_state).
Two narrow repairs for #97948 symptom B (large-session rotation aborts with
'Compression lease lost before publication' / session_split_failed, then the
next turn re-runs the identical doomed compression):
1. publish_compression_child gains require_lease_refresh: the lease is
extended inside the same transaction as the expiry check (same conn, no
TOCTOU), giving a worker whose refresher thread died from transient DB
failures one final chance to keep its completed work.
2. A failed compression split now records a 60s failure cooldown, so the
next turn cannot immediately re-trigger the same compression.
Salvaged from #98137 (author: vsd2807). The timeout-reconciliation half of
that PR is NOT carried: it has a blocking review (runtime sid vs persisted
session_key, one-shot check cannot observe a 6-minute commit, no identity
projection) and needs a redesign.
Teknium