Changes to Proxy completions

post/v1/proxy/completions

Oct 30, 20268f5039399f77 Revision changes
- breaking
  the request's body became not nullable
Sep 30, 2024ac2727014d93 Revision changes
- breaking
  the response's body became nullable
- info
  the request's body became nullable
Jul 30, 20249635568dd298 Revision changes
- info
  endpoint added