/[Claude Sonnet 4.6] Can you walk me through the register route I just added to server.js? What is each part doing and why do we need it?
/[Claude Sonnet 4.6] Can you walk me through the login route I just added to server.js? What is each part doing and explain why I need it?
/[Claude Sonnet 4.6] What is each part doing in this verifyToken middleware code? Explain why I need it
/[Claude Sonnet 4.6] Explain to me the changes made in server.js from the previous version and why they were needed.