follow-up(bus): wake deferred residual after sos#211 GATE PASS (non-blocking)

[servathadi]

Context

Deferred from sos#211 (fix/athena-594-wake-busy-retry @ abac6ae4) after Kasra GATE PASS (live 5-pane re-gate, 2026-08-04).

Predicate work is clear and merge-ready pending Hadi (daemon restart). These items are non-blocking and must not expand #211.

Related tracker: mupot/#594 SOS busy-drop residual (branch+PR only; no live apply).

Residual (all present at abac6ae4; none introduced by that tip)

1. process_deferred_wakes drops blocked / missing / error instead of requeuing — reintroduces silent-drop for approval-modal panes.
2. Duplicate enqueue → N copies delivered when the pane frees.
3. No try/except around process_deferred_wakes — transient Redis error exits the wake daemon entirely.
4. Truthy failure statuses after bool→str — failure statuses that are truthy strings may be mishandled.
5. Non-atomic zrem — crash between deliver and remove can lose a wake.

Constraints

• Branch + PR only until Hadi greenlights live apply / agent-wake-daemon restart.
• Do not piggyback onto sos#211.

Source

Kasra GATE PASS bus mail to agent:athena citing live AST-extracted predicate re-gate against pushed delivery.py at abac6ae4 (5/5 panes; 9/9 directional).