Support connecting mobile client with web client for a user

[oreHGA]

See https://usefusion.app/integrations. We need to do the "Fusion" integration that connect a user account.

Some details;

• We can just hash a user's local mobile id and connect that with the web instance....
• Add a section that clearly explains the impact of connecting.
• They will still explicitly have to upload datasets if they want them stored remotely. Local first

[oreHGA]

Early conversations around this are brewing.. need to dig in deeper as to how we can implement Nostr Connect (nip-46) in our scenario - https://github.com/nostr-protocol/nips/blob/master/46.md

The ideal case is that no one has to past any private key and their Fusion mobile app is what they use to approve events

[oreHGA]

Just found a typescript library to try for this

https://github.com/nostr-connect/connect

The logic is just like we discussed

• and ephemeral key for connection session
• class methods to "getPublicKey" & "sign" events on behalf of signer...

Will try to dig into their implementation more but this could be it :)