Two gaps kept the 🔔/🔕 monitor-armed indicator from ever showing:
1. The block keyed off $ALTHING_HANDLE, which is unset in the
statusline environment — so the handle was always empty and the
whole bell block was skipped. Resolve the per-project handle from
~/.althing/session_handles.json (keyed by the cwd Claude Code
passes on stdin), the same map `althing-cli use` writes.
2. Even with the handle resolved, the lock check covered only
wake-listener-$h.lock and light-monitor-$h.lock — missing
monitor-$h.lock, which is the lock `althing-cli monitor` (the
CC-native exit-0-re-arm loop) actually writes. Add it; the
kill -0 liveness gate already discards stale locks.