I Revived a Broken MLOps Platform — Now It's Self-Service, Policy-Guarded, and Operationally Credible

Submitted for the GitHub Copilot Challenge — deadline June 7, 2026. Built with GitHub Copilot as an active architectural and debugging partner. On April 4th, I abandoned this platform. Backstage crashed. ArgoCD was broken. KServe couldn't serve a single model. I walked away and left it for dead. 48 days later, I came back and rebuilt it into a self-service AI inference platform with GitOps, policy enforcement, and deterministic recovery. 21 checks. 0 failures. Reproducible on any machine....