Function mentionUser

mentionUser(
userId: string,
options?: { annotations?: Object; url?: string },
): Object[]
Creates a user mention with shorthand syntax.
Parameters
- userId: string
  The user ID to mention
- Optionaloptions: { annotations?: Object; url?: string } = {}
  Additional options for the mention
  - Optionalannotations?: Object
    Text annotations (bold, italic, etc.)
  - Optionalurl?: string
    URL for the mention
Returns Object[]
- Array with a single Rich Text Object containing the user mention
Example
```
// Simple user mention
mentionUser("user_123")

// User mention with annotations
mentionUser("user_123", { annotations: { bold: true, color: "blue" } })
```
- Defined in rich-text.mjs:220