1.0.1

Fixed

• TestFlight builds are labelled testflight again. The legacy receipt heuristic stopped
  distinguishing TestFlight from the App Store for apps built with the iOS 18 SDK or later
  (both channels get a receipt URL ending in plain receipt), so TestFlight events landed in
  the App Store scope. The environment is now read from the store's signed AppTransaction,
  with the receipt heuristic kept as the fallback for builds the store cannot vouch for. The
  answer arrives asynchronously; the first flush waits for it and restamps anything queued, so
  no event leaves with the wrong label. A store-signed build launched from the developer tools
  (AppTransaction.environment == .xcode) now labels itself debug rather than appstore.