Subgraph deployment reliability

Some failures do not need a platform rewrite. They need a careful wrapper around the bit that flakes.

The Graph deployment flow can fail when the IPFS endpoint times out. The generated artifacts are valid, the release intent is valid, and the operator mostly needs persistence. The fix was a small script that validates the release version, runs the deploy, and retries on failure until the gateway cooperates.

This is the kind of engineering I like: small, legible, operationally useful, and biased toward getting the team back to the work that matters.