Preview Drilling Costs in Parameters Editor

Per user suggestion, interface could show drilling cost preview like SAM does:

<img width="883" alt="Image" src="https://github.com/user-attachments/assets/c7c3d5ef-9cda-4b08-a75d-e3083f447f91" />

(Previews could also be shown for other parameters generally; specific ideas may be tracked as separate issues.)