Add login page

[rosarp-gobazzinga]

1. Check if static html is sufficient
2. If not, then add Leptos for interactivity
3. Add login page with 2 providers (google, internetidentity)

[rosarp-gobazzinga]

Change user_identity to some signature with expiration. Remove from json payload, put in http cookie. Page redirect:

• need to pass renewed delegated_identity
• New user_identity signature

To Check:

• post message API

[rosarp-gobazzinga]

identification need to be constant, as it is key in KV store. So adding expiration & pubkey etc and hashing it wont be helpful. As hash/signature will keep on changing if expiration changes.

Possible solution: HS256(Base64(pubkey)) , encrypt with (server side) users private key and send across. Which can then be used as key in KV store. store directly.