Replace format-graphql with pretty_graphql for comment-preserving GraphQL formatting

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

crates-tauri/yaak-app/src/lib.rs

@@ -872,6 +872,14 @@ async fn cmd_format_json(text: &str) -> YaakResult<String> {
     Ok(format_json(text, "  "))
 }
 
+#[tauri::command]
+async fn cmd_format_graphql(text: &str) -> YaakResult<String> {
+    match pretty_graphql::format_text(text, &Default::default()) {
+        Ok(formatted) => Ok(formatted),
+        Err(_) => Ok(text.to_string()),
+    }
+}
+
 #[tauri::command]
 async fn cmd_http_response_body<R: Runtime>(
     window: WebviewWindow<R>,
@@ -1641,6 +1649,7 @@ pub fn run() {
             cmd_http_request_body,
             cmd_http_response_body,
             cmd_format_json,
+            cmd_format_graphql,
             cmd_get_http_authentication_summaries,
             cmd_get_http_authentication_config,
             cmd_get_sse_events,