fetch_users previously only surfaced users who appeared as ticket
owners. Add list_users(limit, offset) to hit the accounts user-list
endpoint directly with raw limit/offset params -- the generated OpenAPI
wrapper only supports page, which this endpoint silently ignores.
fetch_users now paginates that list and hydrates each entry with
get_user_detailed_info to keep the existing email/phone/address columns.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
