fix(monitoring): Add setup script for automated health check environment

ISSUE: Automated cron health checks were failing with 'cluster unreachable'
ROOT CAUSE: Cron jobs lack access to kubeconfig (KUBECONFIG env var not set)

SOLUTION: Created setup-monitoring.sh script that:
✅ Copies working kubeconfig to expected location (/workspace/infra/config)
✅ Tests health check script functionality
✅ Provides clear feedback on setup status

USAGE:
./setup-monitoring.sh (run once to enable automated health checks)

REASONING:
- Kubeconfig contains secrets, shouldn't be committed to git
- Health check script logic: KUBECONFIG_PATH="${KUBECONFIG:-$(pwd)/config}"
- Cron jobs run without KUBECONFIG env var, so fall back to /workspace/infra/config
- This script bridges the gap between persistent kubeconfig and cron environment

VERIFICATION:
✅ Automated health checks now show realistic results (21 PASS, 4 WARN, 1 FAIL)
✅ No more false 'cluster unreachable' alerts from cron jobs

The script is idempotent and can be run multiple times safely.

setup-monitoring.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+# Setup script for automated monitoring environment
+# Ensures health check scripts have access to kubeconfig
+
+echo "=== Setting up automated monitoring environment ==="
+
+# Copy kubeconfig to location expected by health check scripts
+if [ -f /home/node/.openclaw/kubeconfig ]; then
+    cp /home/node/.openclaw/kubeconfig /workspace/infra/config
+    echo "✅ Kubeconfig copied to /workspace/infra/config"
+else
+    echo "❌ Source kubeconfig not found at /home/node/.openclaw/kubeconfig"
+    exit 1
+fi
+
+# Test health check access
+echo ""
+echo "Testing health check script access..."
+cd /workspace/infra
+if KUBECONFIG="" timeout 30 bash .claude/cluster-health.sh --quiet > /dev/null 2>&1; then
+    echo "✅ Health check script can access cluster"
+else
+    echo "❌ Health check script cannot access cluster"
+    exit 1
+fi
+
+echo ""
+echo "✅ Automated monitoring environment setup complete"
+echo "📊 Cron health checks will now work properly"