* add block label, name, and search query param validation * finishing touches on blocks * remove default for blocks * query changes to api spec * openapi changes * change descriptions
* fix: fix deep research agent * chore: update blocks response * add message * update agents * update * use blockresponse * undo merge conflict * add internal agents and blocks * remove unnecessary internal agent route * fix utils server test --------- Co-authored-by: christinatong01 <christina@letta.com>