This test assertion change is incorrect. Looking at the implementation in index.tsx, the handleAddMessage function (lines 77-92) alternates roles: if the last message is user, it adds assistant, and if the last message is assistant, it adds user. Since the test starts with a user role message, the new message should have role assistant, not user. The original assertion was correct.

This test assertion change is incorrect. Looking at the implementation in index.tsx, the validation error for missing question is shown with type 'error' (lines 50-53), not 'warning'. The Toast.notify call uses type: 'error' for all validation failures. The original assertion was correct.

This comment addition is unrelated to the stated purpose of the PR, which is to remove useless __esModule properties. While the comment itself is not harmful, it appears to be an accidental inclusion from development/debugging work and should be removed to keep the PR focused on its single stated purpose.

This test assertion change is incorrect. Looking at the implementation in index.tsx, the handleUpgrade function always calls onClose() first (line 36), regardless of whether an onUpgrade callback is provided. When no onUpgrade is provided, it calls setShowPricingModal() after calling onClose(). Therefore, this assertion should remain as expect(onClose).toHaveBeenCalledTimes(1) instead of expect(onClose).not.toHaveBeenCalled().