feat: add work-queue skill for Marcus and Steve

skill/bin/wq_stale_check

@@ -0,0 +1,35 @@
+#!/bin/bash
+# wq_stale_check — find in_progress items older than timeout, mark blocked
+
+wq_stale_check() {
+  local timeout_minutes="${1:-30}"
+
+  local items
+  items=$(curl -sf "$API_URL/work?status=in_progress" | jq -r '.[] | @json' 2>/dev/null || echo "")
+
+  if [[ -z "$items" ]]; then
+    echo "No in_progress items found."
+    return 0
+  fi
+
+  local count=0
+  now_ts=$(date -u +%s)
+
+  while IFS= read -r item; do
+    [[ -z "$item" ]] && continue
+    work_id=$(echo "$item" | jq -r '.id')
+    updated_at=$(echo "$item" | jq -r '.updated_at')
+    agent=$(echo "$item" | jq -r '.assigned_agent')
+    age_minutes=$(( (now_ts - $(date -u -d "$updated_at" +%s 2>/dev/null || echo "$now_ts")) / 60 ))
+
+    if [[ "$age_minutes" -gt "$timeout_minutes" ]]; then
+      echo "Stale: $work_id ($agent, ${age_minutes}m old) — marking blocked"
+      curl -sf -X PATCH "$API_URL/work/$work_id" \
+        -H "Content-Type: application/json" \
+        -d "{\"status\":\"blocked\",\"notes\":\"Auto-blocked: stale for ${age_minutes} minutes (>$timeout_minutes)\"}" | jq -r '.id' > /dev/null
+      count=$((count + 1))
+    fi
+  done <<< "$items"
+
+  echo "Stale check complete: $count items marked blocked."
+}