<objective Create, list, close, or resume persistent context threads. Threads are lightweight cross-session knowledge stores for work that spans multiple sessions but doesn't belong to any specific phase. </objective <process Parse $ARGUMENTS to determine mode: - or (empty) → LIST mode (show all, default) - → LIST-OPEN mode (filter to open/in progress only) - → LIST-RESOLVED mode (resolved only) - → CLOSE mode; extract SLUG = remainder after "close " (sanitize) - → STATUS mode; extract SLUG = remainder after "status " (sanitize) - matches existing filename ( exists) → RESUME mode (existing be…