PM-trigger via Gitea: pm-task.sh + webhook routing on pm:plan label + idempotency

agents/dev-task.sh

@@ -19,11 +19,13 @@ ISSUE="${2:-}"
 [[ -z "$REPO" || -z "$ISSUE" ]] && { echo "usage: $0 <owner>/<repo> <issue-id>" >&2; exit 64; }
 
 # Serialize: only one dev-task active at a time (Max-plan rate-limit pool).
-# Wait up to 60s for the lock; if still held, exit 75 so the webhook retries.
+# Wait up to LOCK_WAIT seconds (default 30 min — enough for one queued task
+# behind a max-wallclock task). If still held, exit 75.
 LOCK_FILE="${LOCK_FILE:-/var/agent/dev-task.lock}"
+LOCK_WAIT="${LOCK_WAIT:-1800}"
 exec 200>"$LOCK_FILE"
-if ! flock -w 60 200; then
-  echo "[dev-task] another dev-task is running; backing off" >&2
+if ! flock -w "$LOCK_WAIT" 200; then
+  echo "[dev-task] queue full after ${LOCK_WAIT}s wait; backing off" >&2
   exit 75
 fi