Update a website via API

Description: This story is part of getting to a simple Level 1 customer usage of dweb hosting on Manifest. This story is to enable users to update their site via the hosting API. This should be able to be achieved by sending a ZIP file of the entire site and letting us unzip and deploy it. This is related to #100.

As a user, I want to update my site via API so that it is current.

- [ ] Should be able to receive a ZIP file via API.
- [ ] Should be able to unzip the file and deploy the site.
- [ ] Should be able to input the site domain.
- [ ] Should retain the SSL.
- [ ] Should present an error message if unable to deploy properly.
- [ ] Should create API documentation.
- [ ] Should be demoed.

[Nelify example.](https://docs.netlify.com/api/get-started/#update-site)

Read related issue #100 and the linked Netlify API example first; the payload names no repository files, tests, or entry points. Done would require satisfying the checklist: accepting a ZIP and domain, unzipping and deploying, retaining SSL, reporting deployment errors, documenting the API, and demonstrating the result.

Written by the indexing model from the issue text.