fix: Register both (Vanguard and Connect) handlers

[kevinmichaelchen]

Goals

Resolves #82

• Connect handlers should work
• REST handlers should work

Connect

Here we're invoking a Connect API, and it works 🎉

pkgx http POST \                                                           
  http://localhost:8081/temporal.v1beta1.TemporalService/CreateOnboardingWorkflow <<<'
  {
    "license": {
      "start": "2023-11-16T12:00:00Z",
      "end": "2024-01-16T12:00:00Z"
    },
    "org": {
      "name": "Org 1"
    },
    "profile": {
      "full_name": "Kevin Chen"
    }
  }
  '

REST

Now we want to test our REST annotations in orgapis/**/api.proto:

curl http://localhost:9090/orgs/123