Mutation - bulkInsertActions

Creates Hive action cards. Use explicit ranks when exact ordering matters. The result maps each inputIndex to its rank, actionId, title, and URL for parent or dependency references. Set layout.hiddenSections to hide supported card sections. Requires workspace access and create permission in every destination project, including inherited parent projects. Public visibility alone grants no write access; read-only users, including admins, cannot create actions there. A denied destination rejects the entire batch before insertion. When the user says "on my list" or otherwise implies personal ownership, use the caller as assignee by default.