Sentry: errors from the duel server, and cron check-ins for the rollup and backup

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0141G6xqLeNRYEtviLWSB5Up

deploy/waving-hands-backup.sh

@@ -4,8 +4,9 @@
 #   snapshots/  - one dated copy per day, pruned after 90 days
 # Ledgers are append-only JSONL; the duel server never needs stopping.
 # Sentry Crons check-in: /root/.waving-hands-sentry-cron holds the check-in
-# URL (absent file = no check-ins).
+# URL (absent file = no check-ins). SCHEDULE must match /etc/cron.d/waving-hands.
 set -u
+SCHEDULE="23 7 * * *"
 BUCKET="kestrel-wizwar-backups"
 PREFIX="waving-hands"
 SRC="/var/lib/waving-hands"
@@ -13,7 +14,11 @@ LOG="/var/log/waving-hands/backup.log"
 STAMP=$(date +%Y-%m-%d)
 mkdir -p "$(dirname "$LOG")"
 CRON_URL=$(cat /root/.waving-hands-sentry-cron 2>/dev/null || true)
-checkin() { [ -n "$CRON_URL" ] && curl -sf -o /dev/null "$CRON_URL?status=$1" || true; }
+checkin() {
+  [ -n "$CRON_URL" ] && curl -sf -o /dev/null -X POST -H "Content-Type: application/json" \
+    -d "{\"status\":\"$1\",\"monitor_config\":{\"schedule\":{\"type\":\"crontab\",\"value\":\"$SCHEDULE\"},\"checkin_margin\":30,\"max_runtime\":10,\"timezone\":\"UTC\"}}" \
+    "$CRON_URL" || true
+}
 
 if [ ! -s /root/.config/rclone/rclone.conf ]; then
   echo "$(date -Is) skipped: rclone is not configured" >> "$LOG"