Valid iOS subscriptions are not recognized by server

[ronaldmannak]

This issue only applies to iOS TestFlight and App Store builds. Debug iOS builds and all macOS builds (debug and production) aren't affected.

SwiftOpenAIProxy uses Apple's App Store Server Library to extract the transaction Id from App Store receipts. However, in some cases the library returns an incorrect single digit transaction Id.

The issue is described in detail here:
apple/app-store-server-library-swift#33

I've also filed a Radar (FB13626068)

Until this issue is fixed, SwiftOpenAIProxy expects a plain transaction Id

[ronaldmannak]

It turned out the device had an old local Xcode receipt of an ancient version of the app.