- Replaces python fcntl.flock with SQLite BEGIN IMMEDIATE.
- Status/Reconcile read from SQLite SSOT, with YAML fallback.
- Explicitly documented tradeoff: YAML is no longer a real-time view.
- Handles PRAGMA wal_checkpoint(TRUNCATE) safely outside transactions.
FW-03: replace 'delete' with 'stop' in skill reference (line 299).
'terminated' retained as valid YAML status value (hard kill mode).
FW-10/FW-16: add Glossary section distinguishing session states
(running/stopped/terminated/archived in agent-sessions.yaml) from
job states (pending/running/completed/error/cancelled in registry).
Documents which skill/function sets each state.
Godopu