cdphttp: net/http client that sends requests through a running Chrome
(DevTools Protocol), so they carry the browser's fingerprint, headers and
cookies.

    import "codeberg.org/yaklib/cdphttp"

    c, err := cdphttp.NewClient(ctx) // opt: cdphttp.WithEndpoint("http://localhost:9224")
    if err != nil {
        return err
    }
    defer c.CloseIdleConnections()   // optional: closes its hidden tabs now
    resp, err := c.Get("https://example.com")

Endpoint: WithEndpoint > $CDPHTTP_ENDPOINT > http://localhost:9222
(http://host:port or ws:// URL). Connect timeout: 3s.
Browser: google-chrome-stable --remote-debugging-port=9222

Notes:
- Cookies are the browser's; don't set Client.Jar. Responses lack Set-Cookie.
- Request headers override the browser's, except Sec-Fetch-*.
- Requests run in hidden tabs (not in the tab strip), closed on exit.
- cdphttp.Dial(ctx, opts...) returns the *Transport for your own http.Client.