In/out of boundary detection

I am concerned the current logic for in/out detection for boundaries and exclusion zones will fail if there is a turbine inside a boundary with a vertical edge directly above it. Changes may be needed in `process_edge`.

<img width="354" height="283" alt="Image" src="https://github.com/user-attachments/assets/171980d9-75ef-4fa9-a452-dd0dae24c3e9" />