check.sh is the full static gate and the single source of the tool version
pins, which CI reads with --print-specs so a workflow cannot drift from what
runs locally. load-ssh-key.sh is the only thing that knows where the deploy
key comes from — file, CI secret, or Vault — and prints a path, never key
material.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>