Terminal opens prematurely with PET Resolve Environment command

[eleanorjboyd]

Problem: When using "Resolve Environment..." from the Python Environment Tool menu, the terminal opens before entering a path, creating a confusing workflow.

Steps to verify fix:

1. Run "Python Environments: Run Python Environment Tool in Terminal" from Command Palette
2. Select "Resolve Environment..."
3. Verify no terminal opens yet
4. Enter a Python path
5. Verify terminal only appears after path entry
6. Try canceling at the input step - confirm no terminal appears