Fix Emby 4.9 API breakage in session report — update activity types and Items UserId requirement; fix local outside function in cert_monitor

Monitors/cert_monitor.sh

@@ -263,7 +263,7 @@ echo ""
 # Per-domain results — problems always shown with days remaining; healthy only with --log
 for domain in "${CERT_MONITOR_DOMAINS[@]}"; do
     [[ -z "$domain" ]] && continue
-    local _days="${DOMAIN_DAYS[$domain]:-?}" _exp="${DOMAIN_EXPIRY[$domain]:-unknown}"
+    _days="${DOMAIN_DAYS[$domain]:-?}" _exp="${DOMAIN_EXPIRY[$domain]:-unknown}"
     case "${DOMAIN_STATUS[$domain]:-UNKN}" in
         OK)   log  "  $ICON_SUCCESS $domain — healthy (${_days}d, expires ${_exp})" ;;
         WARN) warn "  $ICON_WARN   $domain — warning (${_days}d, expires ${_exp})" ;;