Update dashboard manifests and add automation

- Updated deployment with correct Pi 3 tolerations
- Updated ingress for cloudflare-tunnel
- Added crontab example for systemd alternative
- Updated go.sum

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

automation/crontab.example

@@ -0,0 +1,18 @@
+# K8s Agent Scheduled Workflows
+# Install with: crontab /home/will/.claude/automation/crontab.example
+# Or add to existing: crontab -e
+
+# Environment
+SHELL=/bin/bash
+PATH=/usr/local/bin:/usr/bin:/bin
+CLAUDE_DIR=/home/will/.claude
+DASHBOARD_URL=http://k8s-agent-dashboard-k8s-agent.taildb3494.ts.net
+
+# Cluster health check - every 6 hours
+0 */6 * * * /home/will/.claude/automation/scheduler.sh cluster-health-check >> /home/will/.claude/logs/cron.log 2>&1
+
+# Daily cluster summary - 8am
+0 8 * * * /home/will/.claude/automation/scheduler.sh cluster-health-check >> /home/will/.claude/logs/cron.log 2>&1
+
+# Log rotation - weekly on Sunday at midnight
+0 0 * * 0 find /home/will/.claude/logs -name "*.log" -mtime +7 -delete