feat: realtime notification listener

[moxley01]

Deliberately kept this quite simple: does not try to maintain a cache or anything like that, it assumes that the consumer does this themselves. This is just providing a listener for new notifications as they come in, as an alternative to polling.

@smeijer I took some of your in-app methods and used them as-is (e.g. getUrl, getToken). Not sure whether you think we should try and deduplicate this or if its even worth it.

If you think this approach is way off the mark, feel free to just close it.

Usage would be like:

import { Client, type Notification } from "magicbell-js/user-client"
import { WithRealtime } from "magicbell-js/realtime"

const RealtimeClient = WithRealtime(Client)
const realtimeClient = new RealtimeClient({
  token: userKey,
})

client.listen((notification) => {
      console.log(
        "New notification received:",
        notification,
        notification.title
      )
    })

Tested with npm link in a sample project and it works.

[pkg-pr-new]

Open in StackBlitz

npm i https://pkg.pr.new/@magicbell/cli@553

npm i https://pkg.pr.new/@magicbell/codegen@553

npm i https://pkg.pr.new/magicbell-js@553

commit: 24f764c

[smeijer]

A left over?

Suggested change

"/realtime/package.json",

[smeijer]

to be deleted, i guess