List notes on a post, newest first. This operation is experimental.
Requires the `notes:read` scope.

See the [Notes guide](https://developers.buffer.com/guides/notes.md) for the complete workflow and error handling.

```graphql
query ListNotes {
  collaborationNotes(input: { subject: { postId: "YOUR_POST_ID" } }, first: 10, after: null) {
    edges {
      cursor
      node {
        id
        text
        annotations { type text content indices url displayValue serviceEntityId }
        authorId
        author { id name }
        allowedActions
        createdAt
        updatedAt
      }
    }
    pageInfo { hasNextPage endCursor }
  }
}
```

For a channel-less draft, replace the subject with `{ contentItemId: "YOUR_CONTENT_ITEM_ID" }`. Use a ContentItem ID, not an Idea-board ID.