Sub-ticket of VENUS-2 alumno→staff comentario reply email — student thread reply notifies teacher; reply-scoped, carga-seed stays silent by construction (direct INSERT bypasses notify, per Pluto practica-actions.ts:358-365); reuse 15-min notifiedAt debounce + Reply-To rectificar-practica@; Q3 yes per Elazar 2026-06-05 · venus