App Store Rejection: "App not found" error specifically on iPadOS

Issue: Our app (wrapping a Base44-built site) was rejected by Apple during validation. The app fails on iPadOS with the error {"error_type": "HTTPException", "message": "App not found"}, though it functions perfectly on iOS (iPhone).

Root Cause Hypothesis: We suspect the "median" User Agent suffix is being stripped or omitted on iPadOS. Since iPadOS often defaults to "Request Desktop Website," it may be bypassing the custom UA string required for our backend to identify the app.

Troubleshooting Performed:

Verified the URL is correct.

Confirmed the issue is device-specific (iPad only).

Searched the Median discussion docs (https://docs.median.co/discuss) but found no matching cases.

Request: How can we ensure the "median" string persists in the User Agent on iPadOS to prevent this?