Firmware version is already printed to the log at connect() time (HendiCtrl/Pololu1376) - remove the live GUI/websocket firmware reporting entirely (Connectable, HeaterHendi/StirrerPololu1376, Heater/StirrerTask, web GUI) as redundant. Also move the Heater panel's Closed-loop checkbox into the Controller panel and rename it "Enable" - the Controller panel now shows a live Enabled (green) / Disabled (gray) status badge next to its heading, matching the Connected/Disconnected badges on the Heater/ Stirrer panels. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01YaPLuRPpyjWcwhMvCvpHCL