Thread executor attachment through tool handlers

codex-rs/core/src/codex_tests_guardian.rs

@@ -207,7 +207,12 @@ async fn guardian_allows_unified_exec_additional_permissions_requests_past_polic
     let turn_context = Arc::new(turn_context_raw);
     let tracker = Arc::new(tokio::sync::Mutex::new(TurnDiffTracker::new()));
 
-    let handler = UnifiedExecHandler;
+    let handler = UnifiedExecHandler::new(
+        turn_context
+            .environment
+            .executor_attachment()
+            .expect("test environment has an executor attachment"),
+    );
     let resp = handler
         .handle(ToolInvocation {
             session: Arc::clone(&session),