Relay v1

Use the locked Relay v1 contract instead of remembered examples.

Ground truth

1. Read the locked source record.
2. Read the OpenAPI at the exact Relay Docs commit recorded there.
3. Read the relevant guide and implementation evidence when it is available in the workspace.
4. Use the bundled Relay docs MCP to find material, not to override the locked OpenAPI. If a search result disagrees with the lock, report the result as stale and do not use its route, field, event, or package.
5. Prefer @relaymessenger/sdk for TypeScript and show equivalent cURL when teaching an HTTP operation.

Never invent a route, resource, field, event, package, or migration. Label unproved behavior unknown.