v2 - 2026-10-15 - Exact-match text field filter

Search entities Added the eq operator for text fields in filter.fields. It matches entities whose whole field value equals the given string (at most 2000 characters). A text field filter takes exactly one of contains or eq.
Search entities eq is case-sensitive, except on the predefined email and domain fields, which ignore case. On those fields eq can return more than one entity, so handle every result. Neither contains nor eq trims whitespace from the value.
Search entities Added a user_by_email request example that looks up a user by exact email before creating one.