Adds a GPU Settings card to /tools for the settings that actually
persist on NVIDIA data-center GPUs: ECC mode, MIG mode, and
Confidential Computing mode (all stored in the GPU's inforom/firmware,
take effect after a GPU reset or reboot) plus power limit (does not
persist — reapplied on demand). Includes a one-click "Reset All to
Defaults" that restores factory settings across every visible GPU,
touching only whatever has actually drifted.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
