Network error when importing Spigot projects

### Observed/problematic behavior Trying to import spigot projects onto hangar doesn't work and returns a 502 http error. Error popup: <img width="360" height="91" alt="Image" src="https://github.com/user-attachments/assets/38b7b8cc-3e14-4fae-9f10-99cb5e25e29c" /> Network tab: <img width="809" height="22" alt="Image" src="https://github.com/user-attachments/assets/a5aa2d6d-5267-4649-8864-883ec48e1e04" /> ### Expected behavior Clicking "Load Projects" loads an actual listing of the user's spigot projects. ### Steps to reproduce 1. Go to https://hangar.papermc.io/tools/importer 2. Enter a valid spigot username ### Other - Works as expected when Hangar is deployed locally. - Response of the failing request: <img width="784" height="598" alt="Image" src="https://github.com/user-attachments/assets/4acb8e66-455b-4f98-b9f4-19baa7bf3042" />