chore: proper client extraction (#6996)

codex-rs/codex-client/src/request.rs

@@ -0,0 +1,39 @@
+use bytes::Bytes;
+use http::Method;
+use reqwest::header::HeaderMap;
+use serde::Serialize;
+use serde_json::Value;
+use std::time::Duration;
+
+#[derive(Debug, Clone)]
+pub struct Request {
+    pub method: Method,
+    pub url: String,
+    pub headers: HeaderMap,
+    pub body: Option<Value>,
+    pub timeout: Option<Duration>,
+}
+
+impl Request {
+    pub fn new(method: Method, url: String) -> Self {
+        Self {
+            method,
+            url,
+            headers: HeaderMap::new(),
+            body: None,
+            timeout: None,
+        }
+    }
+
+    pub fn with_json<T: Serialize>(mut self, body: &T) -> Self {
+        self.body = serde_json::to_value(body).ok();
+        self
+    }
+}
+
+#[derive(Debug, Clone)]
+pub struct Response {
+    pub status: http::StatusCode,
+    pub headers: HeaderMap,
+    pub body: Bytes,
+}