Revert "Remove VS Code references from Copilot integration" (#48555) (cherry-pick to preview) (#48557)

zed-zippy[bot] and Mikayla Maki created

Cherry-pick of #48555 to preview

----
Reverts zed-industries/zed#48528

Release Notes:

- N/A

Co-authored-by: Mikayla Maki <mikayla@zed.dev>

Change summary

crates/copilot_chat/src/copilot_chat.rs | 55 ++++++++++++--------------
1 file changed, 25 insertions(+), 30 deletions(-)

Detailed changes

crates/copilot_chat/src/copilot_chat.rs 🔗

@@ -704,31 +704,19 @@ async fn get_models(
     Ok(models)
 }
 
-fn copilot_request_headers(builder: http_client::Builder, api_token: &str) -> http_client::Builder {
-    builder
-        .header("Authorization", format!("Bearer {}", api_token))
-        .header("Content-Type", "application/json")
-        .header(
-            "Editor-Version",
-            format!(
-                "Zed/{}",
-                option_env!("CARGO_PKG_VERSION").unwrap_or("unknown")
-            ),
-        )
-}
-
 async fn request_models(
     models_url: Arc<str>,
     api_token: String,
     client: Arc<dyn HttpClient>,
 ) -> Result<Vec<Model>> {
-    let request_builder = copilot_request_headers(
-        HttpRequest::builder()
-            .method(Method::GET)
-            .uri(models_url.as_ref()),
-        &api_token,
-    )
-    .header("x-github-api-version", "2025-05-01");
+    let request_builder = HttpRequest::builder()
+        .method(Method::GET)
+        .uri(models_url.as_ref())
+        .header("Authorization", format!("Bearer {}", api_token))
+        .header("Content-Type", "application/json")
+        .header("Copilot-Integration-Id", "vscode-chat")
+        .header("Editor-Version", "vscode/1.103.2")
+        .header("x-github-api-version", "2025-05-01");
 
     let request = request_builder.body(AsyncBody::empty())?;
 
@@ -816,16 +804,23 @@ async fn stream_completion(
 
     let request_initiator = if is_user_initiated { "user" } else { "agent" };
 
-    let request_builder = copilot_request_headers(
-        HttpRequest::builder()
-            .method(Method::POST)
-            .uri(completion_url.as_ref()),
-        &api_key,
-    )
-    .header("X-Initiator", request_initiator)
-    .when(is_vision_request, |builder| {
-        builder.header("Copilot-Vision-Request", is_vision_request.to_string())
-    });
+    let request_builder = HttpRequest::builder()
+        .method(Method::POST)
+        .uri(completion_url.as_ref())
+        .header(
+            "Editor-Version",
+            format!(
+                "Zed/{}",
+                option_env!("CARGO_PKG_VERSION").unwrap_or("unknown")
+            ),
+        )
+        .header("Authorization", format!("Bearer {}", api_key))
+        .header("Content-Type", "application/json")
+        .header("Copilot-Integration-Id", "vscode-chat")
+        .header("X-Initiator", request_initiator)
+        .when(is_vision_request, |builder| {
+            builder.header("Copilot-Vision-Request", is_vision_request.to_string())
+        });
 
     let is_streaming = request.stream;