Control: Tool Calibration Updates

Vendor-sourced tool calibration

Calibration can now be done by an outside vendor, not just an internal user. The calibration form lets you pick either one as the calibrator, and each vendor's detail page has a new tool-calibration tab showing a full history of that vendor's calibration records.

Calibration dates and status in the tool download

The tool download now includes Next Calibration Date and Calibration Status columns, requested for audit exports. Both are read-only, and the headers line up with the grid so you can download, edit, and re-upload the template without anything breaking.