added stub open-api spec + corresponding routes, prettier

[lululeon]

Added prettier and some other tooling, but mainly:

• added a stub openapi spec
• stubbed impl of routes using a sample json file
• added auto-generated documentation for exercising and testing the api (you will need to pull this repo and run it to access it)

API Reference / Documentation Page

API Routes These are just nonsense routes to get us going

└── / (GET, HEAD)
    ├── docs (GET, HEAD)
    │   └── /@scalar/fastify-api-reference/js/browser.js (GET, HEAD)
    ├── example (GET, HEAD)
    │   └── / (GET, HEAD)
    └── v0/projects (GET, HEAD)
        └── / (GET, HEAD)
            ├── owned-by/:userId (GET, HEAD)
            ├── with-member/:userId (GET, HEAD)
            └── :projectId (GET, HEAD)

:pencil: Note:

• the json sample file is expected to grow / change
• the open-api spec is expected to grow / change