ea70923e83
Cash App-style scan screen: a segmented Scan | My Code control (new w::segmented) over either the camera or your own payment QR. My Code shows the @handle above a big nprofile QR with the Goblin mark nested in a YELLOW center (was white — same 19% footprint, yellow reads as light to a scanner so the High-ECC recovery is unchanged), and a native Share button. Added share_text to PlatformCallbacks (Android ACTION_SEND text/plain via a new shareText JNI method; desktop falls back to clipboard) to share the npub + nprofile link.