curl --request GET \
  --url https://spectrum.photon.codes/projects/{projectId}/slack/

{
  "succeed": true,
  "data": {
    "appConfigId": "<string>",
    "projectId": "<string>",
    "enabledFeatures": [
      "<string>"
    ],
    "clientId": "<string>",
    "clientSecret": "<string>",
    "signingSecret": "<string>",
    "appId": "<string>",
    "installationCount": 4503599627370495,
    "createdAt": "<string>",
    "updatedAt": "<string>"
  }
}