bug/session-history-duplication

session-schema-improvements

fix/null-values-in-strict-json-schema

gh-pages

docs/improve-usage-tracking

fix/emtpy-arguments-in-tool_call_item-event

docs/sqlalchemy-session-improvements

feat/sqlalchemy-sessions

docs/usage-tracking

feat/immediate-tool-call-item-streaming

fix/CI-run-format-check

fix/function-tool-strict-schema