Can add the curl proxy setting?

curl:
-x, --proxy [protocol://]host[:port] Use this proxy

```lua
Api.job = job
:new({
command = "curl",
args = {
url,
"-H",
"Content-Type: application/json",
"-H",
"Authorization: Bearer " .. Api.OPENAI_API_KEY,
"-d",
"@" .. TMP_MSG_FILENAME,
},
on_exit = vim.schedule_wrap(function(response, exit_code)
Api.handle_response(response, exit_code, cb)
end),
})
```

Start at the Lua job definition shown in the issue, where the curl command and args are assembled. Trace how plugin settings reach this request, then add a proxy option passed to curl; done means configured requests use the proxy while requests without one remain unchanged. The payload names no test file, so check the project’s existing request or job tests for validation.

Written by the indexing model from the issue text.