Add gateway

Request

• Base URL
  / (relative, and the document was published on a file host, not at the API’s origin)
• Auth
  • API key in cookie __Host-mc-session
  • or API key in header x-api-key
• TypeScript
  https://skmtc.dev/builderz-labs/apis/mission-control-api/docs/api/gateways/post.ts

  A function with typed inputs. Its response is checked against the schema.