de_ancient inaccuracy

plotting the classic nade throw location at b ruins returns a location outside the map boundary. could be a cs radar issue or a wrong calculation of the location...

<img width="1920" height="967" alt="Image" src="https://github.com/user-attachments/assets/e316b1c9-db6c-45b8-af0f-955a6d3ea4c4" />

correct location would be in the corner