v2 - 2026-04-30 - Entity HTML deep links and legacy search format removal

Entity responses now include an html link in links pointing to the entity in the Productboard web UI. Returned on List entities, Retrieve entity, Create entity, Update entity, Search entities, and entity relationship responses.
Search entities Removed deprecated legacy flat properties (type, types, ids, name, archived, parent, statuses, owners, fields) from the request body. Use the structured filter and return objects instead