DELETE /runs?flow= removes every Run row of the flow but left its flow_run rows, so a deleted flow kept appearing in the history. history=true now drops those too, and the flow delete dialogs (editor and bulk) send it when "Also delete its runs" is ticked. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01WgBfkm4rCmtd1T4vHWjEPx