upgrade dependencies and fix compatibility issues

lib/rate-limiter.ts

@@ -24,11 +24,11 @@ export function rateLimit(
   const windowStart = now - config.windowMs
   
   // Clean expired entries
-  for (const [key, data] of cache.entries()) {
+  Array.from(cache.entries()).forEach(([key, data]) => {
     if (data.resetTime < now) {
       cache.delete(key)
     }
-  }
+  })
   
   let data = cache.get(identifier)