Make Checkout Company Required

How can you make checkout company required in WordPress? This use case shows how a focused WordPress code snippet can handle the task without installing a heavy plugin. The snippet should make the company field required at checkout and produce this result: Customers must fill in the company field before placing an order. You can also log in to LeonLab.ai, describe this WordPress use case in plain English, generate the snippet, review the PHP code, and deploy it to the selected WordPress project.