Abstract message sender — the runtime calls this to send messages
back to a specific napplet. The transport layer (postMessage, WebSocket,
host bridge channel, etc.) is the implementor's concern.
Accepts both NIP-01 array format (legacy) and NIP-5D NappletMessage envelope format.
Abstract message sender — the runtime calls this to send messages back to a specific napplet. The transport layer (postMessage, WebSocket, host bridge channel, etc.) is the implementor's concern.
Accepts both NIP-01 array format (legacy) and NIP-5D NappletMessage envelope format.