- Switch disk device from `/dev/vda` to `/dev/sda` for compatibility.
- Add S3 storage configuration with bucket, region, and endpoint.
- Update system state version from `24.05` to `25.11`.
- Remove unused imports and clean up redundant attributes.
This commit refactors the hardware configuration in the SGX attic. A new file named `disko.nix` has been added which houses the disk setup previously located on `hardware-configuration.nix`. Additionally, some parameters in `default.nix` have been updated and unneeded configuration settings have been removed.
