Clerk Authentication Expert patterns for Clerk auth implementation, middleware, organizations, webhooks, and user sync Detailed Guide Read the detailed guide before executing this skill. It retains the complete procedure and reference material. Treat its safety, prerequisites, and validation requirements as mandatory. For focused work, load the relevant sections; for end-to-end work, read the guide completely. When to Use - User mentions or implies: adding authentication - User mentions or implies: clerk auth - User mentions or implies: user authentication - User mentions or implies: sign in…