Fixing at command race condition (#6663)

packages/cli/src/ui/hooks/useGeminiStream.ts

@@ -307,6 +307,13 @@ export const useGeminiStream = (
             messageId: userMessageTimestamp,
             signal: abortSignal,
           });
+
+          // Add user's turn after @ command processing is done.
+          addItem(
+            { type: MessageType.USER, text: trimmedQuery },
+            userMessageTimestamp,
+          );
+
           if (!atCommandResult.shouldProceed) {
             return { queryToSend: null, shouldProceed: false };
           }