fix: remove deliberate exception from /ping endpoint to prevent 500 errors and alert firing

[plural-copilot]

Summary

This PR fixes the issue causing high rates of HTTP 500 internal server errors on the /ping endpoint of the flow-test workload in the demo-prod EKS cluster. The root cause was a deliberate exception-raising condition in the app/main.py file that threw an error every 3 seconds, triggering alerts and impacting service reliability.

Changes Made

• Commented out the error-raising lines in the /ping route handler in app/main.py to prevent the deliberate exceptions.

Rationale

Removing the deliberate exception resolves the internal server errors, stops the continuous alert firing in Prometheus/Grafana, and ensures the /ping endpoint behaves as a healthy liveness probe returning a 200 status. The fix is minimal and aligns with the GitOps deployment model, maintaining service stability and observability with the Prometheus instrumentation.

Please review and merge to restore stable, error-free operation on the /ping endpoint.