Prepare A PR For NeMo Relay

Use this skill at the end of a contributor or maintainer change before opening a pull request. Also use it whenever a user asks to create, open, publish, update, or edit a NeMo Relay pull request, pull request description, or PR body.

If this repo-local guidance conflicts with generic GitHub publishing, connector, or plugin guidance, this skill wins for PR body format, validation language, and review handoff details.

Checklist