When deleting the AUTOIDLEPC project in autoidlepc(), if a remote compute
is disconnected, the deletion fails with ControllerForbiddenError due to
our compute connection status check. This causes:
- The project to remain in the controller's memory
- Subsequent autoidlepc calls to fail
- User must restart the server to recover
This fix adds exception handling to ensure the project is always removed
from the controller's memory, even if deletion fails.
Related to #2703
c92188cad4