Changes made for Pathfinder V5 PC's.

What it does Adds a "Retract Backstops" button to the backgauge calibration screen, below the Modify Offset button. When pressed, it sends 0.0 to parameter 0x0064/0x6060 (Backstop Jog Distance), retracting the backstops. A red warning label below reads: "Hit Retract Backstops Before Taking Measurement and Pressing Modify Offset Button".

It also resets the jog screen's remembered backstop distance to 0.0 so both screens stay in sync.

Visibility Only appears on Backgauge 1/2 calibration screens when HasBackstopExtend == true.

Files Modified CalibrationUC.cs - Added _retractBackstopsButton, _retractBackstopsWarningLabel, RetractBackstopsParameterSend event, click handler sends 0.0 via ParameterStore and calls JogPanel.ResetBackstopDistance() ToolsViewManager.cs - Wired RetractBackstopsParameterSend to existing OnBackstopJogParameterSend (reuses the jog screen's event chain to reach SendParameterStore) JogPanel.cs - Added ResetBackstopDistance() static method to zero out the persisted selection FormResource.resx + FormResource.Designer.cs - Added RetractBackstops and RetractBackstopsWarning resource strings Event Flow

CalibrationUC.retractBackstopsButton_Click ? ParameterStore(0x0064, 0x6060, value=0.0) ? RetractBackstopsParameterSend ? ToolsViewManager.OnBackstopJogParameterSend ? ToolsViewPresenter ? MainDialogPresenter ? ApplicationManager ? SendParameterStore

• JogPanel.ResetBackstopDistance() (syncs jog screen label)