Senior-level Clerk authentication expertise for Next.js 15/16+ applications. Use when implementing auth, protecting routes, fixing auth errors (500s, handshake redirects, middleware failures), integrating with Convex/Stripe, or debugging Clerk issues. Covers proxy.ts patterns, route groups, client vs server auth, and the 12 Commandments that prevent common disasters.

适用于 Next.js 15/16+ 应用的高级 Clerk 身份验证专家。在实现认证、保护路由、修复认证错误（500 错误、握手重定向、中间件失败）、与 Convex/Stripe 集成或调试 Clerk 问题时使用。涵盖 proxy.ts 模式、路由组、客户端与服务端认证，以及避免常见灾难的十二条准则。