GPT Partitions: Clear a Reused Disk and Lay Out Data and Swap

A disk has been handed to you from another team: /dev/s9disk, 1 GiB, already labelled GPT. It still carries their old 100 MiB partition named old-scratch. Prepare it for this server:

1. Delete the old-scratch partition. Keep the GPT label.

2. Create a 300 MiB partition with the Linux filesystem type, for data.

3. Create a 256 MiB partition with the Linux swap type.

Only the partition table is graded, so you don't need to format or mount anything. Sizes within 5% count, and any tool that writes GPT is fine: parted, fdisk or sfdisk. The brief is also in /root/case/brief.txt.