Function uds_request 

pub fn uds_request(
    socket_path: &Path,
    method: &str,
    request_target: &str,
    headers: &[(&str, &str)],
    body: &[u8],
) -> Result<(u16, Vec<u8>)>

v0.7.0-alpha.17: minimal blocking HTTP/1.1 client over Unix Domain Socket. Used by callers that detect a unix:// scheme on a relay endpoint URL and route around reqwest (which has no UDS support).

Connects to socket_path, writes a single HTTP/1.1 request, parses status + Content-Length + body. Closes the connection (no keep- alive). Sufficient for wire’s request shape: single POST or GET per call, JSON in + JSON out, small payloads.

Returns (status_code, body_bytes). Caller decodes body per the endpoint’s content type.