I run 6 AI businesses from a single VPS. When your entire operation depends on automated tasks running perfectly, you learn to build systems that fix themselves before you wake up to angry customers. Here's how I built a cron system that monitors itself and recovers from failures automatically using pg_cron and Supabase Edge Functions. Why I needed this My Load Bearing Empire processes thousands of AI agent calls daily. Lead scoring runs every 15 minutes. Data sync happens hourly. Payment processing triggers every 30 minutes. A single failed cron job costs me real money. I've been burned by silent failures too many times. Most developers rely on external monitoring services. I prefer owning my infrastructure. This system costs me $0 in additional subscriptions and runs entirely within Supabase.…