fix(cli): filter outage schedule by selected bill

main.sh

@@ -68,7 +68,7 @@ repository state. The countdown updates every second.
 
 Options:
   -i, --interval MINUTES  Refetch state at this interval (default: 10)
-  -b, --bill-id BILL_ID   Use only this bill for the large countdown
+  -b, --bill-id BILL_ID   Show the countdown and schedule for this bill only
   -h, --help              Show this help
 
 Environment:
@@ -334,6 +334,9 @@ build_schedule() {
 
   while IFS= read -r record; do
     record_fields "$record" fields
+    if [[ -n "$countdown_bill_id" && "${fields[0]}" != "$countdown_bill_id" ]]; then
+      continue
+    fi
     if [[ "${fields[2]}" != "active" ]]; then
       continue
     fi