Mac with Recipe Robot but no autopkg produces pinwheels with no output

[apizz]

Describe the bug
Should a silly admin forget to install autopkg but install Recipe Robot, when entering a URL to have Recipe Robot process the app just pinwheels

To Reproduce
Steps to reproduce the behavior:

1. On Mac without autopkg installed, install Recipe Robot.
2. Configure initial Recipe Robot prefs
3. Copy & paste URL
4. See pinwheel

Expected behavior
Recipe Robot informs the admin that they are missing autopkg!

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• macOS: 10.15.7
• Recipe Robot Version: 2.2.0
• autopkg version: N/A
• /usr/local/autopkg/python --version: N/A

[macvfx]

Still seeing this behaviour on Recipe Robot v.2.3.1 and macOS 13.6.1 Ventura