Third-party dApp support for Zcash Snap (allowedOrigins restriction)

[AustinChris1]

Hi ChainSafe team,

I'm building SIWZ (Sign in with Zcash), a practical SIWE-style auth primitive.

I want to support your Snap for the best UX (getViewingKey, future signPczt, etc.), but I'm blocked by the strict allowedOrigins in the snap manifest (currently only https://webzjs.chainsafe.dev is allowed).

Demo: https://siwz.vercel.app/
npm: @siwz/core, @siwz/react, @siwz/next-auth

A couple of questions:

1. Is there a planned path for third-party dApps to use the Snap (e.g. runtime permission prompt)?
2. Any timeline for publishing @chainsafe/webzjs-wallet to npm?

I'm happy to help with testing, UI for permissions, or a PR if useful.

Thanks for the great work on WebZjs!