Add CTX.do Service Binding

[nathanclevenger]

Now that the service is deploying to the drivly Cloudflare account, you can use the CTX.do service binding.

We should add this to the wrangler.toml:

services = [
  { binding = "CTX", service = "ctx-do", environment = "production" }
]

And then replace:

const { hostname, pathname, search } = new URL(req.url)

with:

const { user, hostname, pathname, rootPath, pathSegments, query } = await env.CTX.fetch(req).then(res => res.json())

This give us JWT and APIKey auth support, as well as a ton of convenience methods like query is search into an object, and body is also cloned and either string or array or object based on the contents of the request body, if there is one. Path segments is also a great convenience as it's an array of pathname split on '/' so params can be easily destructured