[Zapier New Comment] Expose more user details (Get User or Custom Attributes with userId)

The Zapier New Comment trigger currently returns only the internal user ID and limited user data, excluding the userId, email, and custom user attributes.

This makes it difficult to identify commenters and build useful automations (e.g., sending enriched comment notifications to Slack).

Add support for either:

• A Get User action in Zapier to fetch full user details, or

• Including userId, email and custom user attributes directly in the New Comment trigger payload.