NEXT_REDIRECT false-positive error-tier alert — filter Next internal control-flow signals at client sink

applog error-tier alert NEXT_REDIRECT /administrar/usuarios (appEvents e514dd14). Root cause: GlobalErrorHandler's unhandledrejection listener beaconed Next's internal NEXT_REDIRECT control-flow throw (leaked during a non-awaited router transition, not a real error, no redirect() in usuarios route) to /api/log-error; MARS-81 classifier only demotes network-transient strings so it landed error-tier. Fix: drop NEXT_(REDIRECT|NOT_FOUND|HTTP_ERROR_FALLBACK) at the client error-listener sink (both listeners), matches Sentry default behavior. Single Firefox-desktop occurrence, benign, no user impact.