Add CI health check script for automated failure detection

Co-Authored-By: Paperclip <noreply@paperclip.ing>

scripts/ci-health-check.sh

@@ -0,0 +1,72 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# CI Health Check Script
+# Scans all privilegedescalation repos for recent CI failures and reports issues
+
+REPOS=(
+  ".github"
+  "infra"
+  "org"
+  "headlamp-rook-plugin"
+  "headlamp-sealed-secrets-plugin"
+  "headlamp-polaris-plugin"
+  "headlamp-tns-csi-plugin"
+  "headlamp-kube-vip-plugin"
+  "headlamp-argocd-plugin"
+  "headlamp-intel-gpu-plugin"
+  "headlamp-plugin-template"
+  "plugins"
+  "headlamp-agent-skills"
+)
+
+FAILED_RUNS=0
+TOTAL_RUNS=0
+
+echo "## CI Health Check Report"
+echo ""
+echo "Scanning ${#REPOS[@]} repos for recent CI failures..."
+echo ""
+
+for repo in "${REPOS[@]}"; do
+  echo "### $repo"
+  
+  # Get last 5 runs
+  runs=$(gh run list --repo "privilegedescalation/$repo" --limit 5 --json status,conclusion,name,headBranch,updatedAt 2>/dev/null || echo "[]")
+  
+  if [ "$runs" = "[]" ]; then
+    echo "- No recent runs (may not have CI configured)"
+    echo ""
+    continue
+  fi
+
+  # Count failures
+  failure_count=$(echo "$runs" | jq '[.[] | select(.conclusion == "failure")] | length')
+  TOTAL_RUNS=$((TOTAL_RUNS + 5))
+  FAILED_RUNS=$((FAILED_RUNS + failure_count))
+
+  if [ "$failure_count" -gt 0 ]; then
+    echo "- ⚠️  $failure_count recent failure(s)"
+    echo "$runs" | jq -r '.[] | select(.conclusion == "failure") | "  - \(.name) on \(.headBranch) (\(.updatedAt))"'
+  else
+    echo "- ✅ All recent runs passing"
+  fi
+  echo ""
+done
+
+echo "## Summary"
+echo ""
+echo "- Total repos scanned: ${#REPOS[@]}"
+echo "- Failed runs (last 5 per repo): $FAILED_RUNS"
+echo "- Success rate: $(awk "BEGIN {printf \"%.1f\", (($TOTAL_RUNS - $FAILED_RUNS) / $TOTAL_RUNS) * 100}")%"
+echo ""
+
+if [ "$FAILED_RUNS" -gt 0 ]; then
+  echo "## Action Required"
+  echo ""
+  echo "$FAILED_RUNS failed run(s) detected. Review failures above and file issues for code bugs or infra fixes."
+  exit 1
+else
+  echo "✅ All systems healthy. No CI failures detected."
+  exit 0
+fi