Query cbld-api repo and handle the response

[E-Chapman]

Set up an HTTP client to query the cbld-api repo and handle the response.

• There may be more clients in the future, so it would be useful to reserve a src/clients folder this and future clients.
• The client should abstract the developer from the internal workings of the api as much as possible.
• All requests to the cbld API should be proxied via the frontend app's own api layer (corresponding to nexts serverless methods in, for example, src/app/api folder. For example: the client would not make a request directly to https://some-domain/api/v0/projects, but rather to a local handler, e.g. /api/projects. To that end, it would be easier to design a single handler that forwards all requests, rather than create a handler for each request.

Include unit tests to cover the client and response handling logic.

Acceptance criteria

• [ ] the URL to the backend api is an environment variable
• [ ] all requests to the backend api are proxied

[E-Chapman]

@lululeon Does this capture the task in enough detail for now?

[lululeon]

Yep - good enough for now! :)