button C115357 has a curved bottom surface

If there is no cutout in the PCB design, the component may not sit fully coplanar with the solder pads during assembly.

<img width="513" height="495" alt="Image" src="https://github.com/user-attachments/assets/95d519e3-3e85-4803-a285-58446d83efbc" />

<img width="1387" height="703" alt="Image" src="https://github.com/user-attachments/assets/1ebce268-af61-464a-b7fe-d314285abe44" />