Chat x402 template

[rsproule]

Create a template that has an auth switcher to allow user to choose whether to pay in echo credits or USDC via x402.

We have this external video template https://github.com/Merit-Systems/sora-template

We want a stripped down version of this in the /templates folder that just exposes an extremely simple chat interface (use the one in the normal next-chat template) but with this alternative auth switcher

[dhvll]

/attempt #610
hey @rsproule can we import chat interference from next-chat template or do I have to create separate for this one?

[rsproule]

We should reuse the existing one as much as possible. And merge the login flow from the sora template. There was another guy working on this in discord fyi

[dhvll]

will make those change. ps: not seeing anyone

[FrankiePower]

are these issues still active??

[285729101]

Submitted #724 for this. Built the chat template with dual auth support (x402 payments + API key) and reused components from the existing chat template where possible.