calcurse: notify whole-day events every morning

The calcurse daemon only alerts timed appointments, so birthdays went unnoticed. A daily 09:00 timer, started from xmonad and persistent across suspend, sends today's events through notify-send.

.local/bin/calcurse-today

@@ -0,0 +1,9 @@
+#!/bin/bash
+# Notify today's whole-day calcurse events (the daemon only alerts timed appointments).
+set -euo pipefail
+
+events=$(calcurse -Q --filter-type event,recur-event --days 1 \
+    --format-event '%m\n' --format-recur-event '%m\n' | tail -n +2)
+
+[[ -n $events ]] || exit 0
+notify-send -a calcurse -i x-office-calendar "Today" "$events"