Warn-tier friction (nudge-shown) real-time-pages PM — should be digest-only per friction-vs-error standard

Symptom: scrp-applog-mars real-time-DMs PM warn-tier FRICTION events (nudge-shown, category=toast). Observed 2x on 2026-07-19 (13:26Z + 15:35Z), both feedbackKey=rectificar:pending on /mi-cursada — db classified benign/flat baseline (~7/day, no spike, intended rectificar-resubmit nudge). Per the friction-vs-error alerting standard (evolutiva-commons §No Silent Failures + project_error_alerting_suppress_standard): ERROR-tier pages the live PM+Elazar real-time via the applog rail; FRICTION-tier (info/warn: toast/nudge-shown/validation) feeds the WEEKLY UX-pain digest and must NOT real-time-page. So warn-tier friction reaching PM in real-time is the rail/classifier including friction in the page path. Fix: exclude warn-tier friction (category=toast, mechanism nudge-shown/inline-hint/native-validation) from the real-time notify path (fn_notify_applog / severity classifier), keep it flowing to the digest only. db owns the notify rail; confer coder on the app-side classifier (severity=SSOT). Verify: a fresh nudge-shown logs to appEvents + digest but sends NO real-time PM DM; an error-tier row still pages. Low-urgency noise, not blocking.