NIP-46 login via a generated connect link failed with
"nostrClient.prepareRemoteSignerHandshake is not a function". The auth provider
(authProviders/nip46.js) calls nostrClient.prepareRemoteSignerHandshake() to mint
an ephemeral client keypair + nostrconnect:// URI before connecting, but that
method existed only on the unused Nip46Connector class — neither SignerManager
nor NostrClient exposed it.
Add SignerManager.prepareRemoteSignerHandshake (generates the keypair via
nostr-tools, resolves relays, builds the nostrconnect:// URI with relay/secret/
perms/metadata params) and proxy it on NostrClient next to connectRemoteSigner.
Test: tests/nostr/nip46-prepare-handshake.test.mjs. Full suite green.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
