RE-GRADE APPOINTMENT (R9, 2026-09-23) — move this bot's re-grade date, or clear it with null.

A SHADOW/SHELF grade books one automatically (jobs.run_alpha_backtest is still the only path that writes a deployment's grade). This is how the member says "not then, then" or "stop reminding me" — both are answers we take. Setting a date marks the appointment as THEIRS, so a later grade refreshes the REASON and leaves their date alone; clearing removes the whole appointment, including the nudge.

It gates NOTHING. The bot trades identically with an appointment, past one, or with none — the engine advises, it never gates. No new column: the date rides config (jsonb). Owner/desk-pair scoped (404 cross-desk, via _owned_deployment), audited like the other per-bot edits.