Implement CameraX GPG QR transfer on Android (#106)

docs/android/parity.md

@@ -46,9 +46,9 @@ shared core's recipient/signing rules, pass/pass-otp format, HOTP counter safety
 Git failure semantics and secret-redaction requirements remain binding wherever
 an Android workflow invokes them; platform presentation may not replace them.
 
-Current iPhone camera adapters pass OS-decoded QR bytes. Android #106/#91 must
-also supply bounded image/frame facts for Rust decoding as required by the
-Android contract; that additional adapter is pending, not an existing API.
+Current iPhone camera adapters pass OS-decoded QR bytes. Android #106 supplies bounded Y-plane/stride/orientation facts through the
+shared native contract; storage decodes and reassembles the transfer. See
+[key-transfer.md](key-transfer.md) for interruption/security behavior and evidence.
 The external-credential matching/grant API required by #109 must be implemented
 in storage, rather than copying frontend selection assumptions from AutoFill.