feat: adds Liquid Auth /Start API and WebSockets/WebRTC

[HashMapsData2Value]

• Adds the v1/liquid/start API. Making a request to it will return a request id and start up a SignalClient. (This is equivalent to the in-browser Liquid Auth module that presents the request id as a QR code)
• Adds a Signal Client Manager. It's a singleton that lives in memory. Manages each signal
• Polyfills for WebRTC (node-datachannel) and socket.io (ws).
• Expanded on the Docker image distro environment, since more software are needed to handle WebSockets and WebRTC.

[HashMapsData2Value]

Make sure to remove before merge. Dependent on algorandfoundation/liquid-auth-js#24

[github-actions]

Coverage report

Caution

Test run failed

St.❔	Category	Percentage	Covered / Total
🟡	Statements	74.39% (-10.77% 🔻)	799/1074
🔴	Branches	50.97% (-18.47% 🔻)	131/257
🟡	Functions	60.81% (-12.45% 🔻)	90/148
🟡	Lines	75.25% (-9.59% 🔻)	739/982

Show new covered files 🐣

St.❔	File	Statements	Branches	Functions	Lines
🟢	... / signal-client.module.ts	100%	100%	100%	100%
🟡	... / signal-client.manager.ts	71.79%	47.37%	46.15%	73.57%
🔴	... / signal-fsm.ts	32.93%	24.36%	40%	35.17%
🟡	... / utils.ts	62.07%	28.57%	36.36%	60.71%
🟢	... / signal-client.controller.ts	100%	66.67%	100%	100%
🟡	polyfills/webrtc.ts	70%	77.5%	0%	77.14%
🟢	... / algokit-utils-transact.d.ts	100%	100%	100%	100%

Test suite run failed

Failed tests: 1/104. Failed suites: 1/17.

  ● SignalClientController › start returns session shape when manager succeeds

    expect(received).toEqual(expected) // deep equality

    - Expected  - 1
    + Received  + 1

      Object {
        "expiresAt": 12345,
    -   "origin": "https://debug.liquidauth.com",
    +   "origin": "https://beetle-never.ngrok-free.app",
        "requestId": "r1",
        "status": "starting",
      }

      18 |     mockManager.startOffer.mockResolvedValueOnce(fakeSession);
      19 |     const result = await controller.start();
    > 20 |     expect(result).toEqual({
         |                    ^
      21 |       requestId: fakeSession.requestId,
      22 |       expiresAt: fakeSession.expiresAt,
      23 |       status: fakeSession.state,

      at Object.<anonymous> (liquid-auth/signal-client.controller.spec.ts:20:20)

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