code clean up, remove frontend sms api??? why was it there at all?? and some cron things

lib/utils.ts

@@ -28,26 +28,6 @@ export const formatMacAddress = (mac: string): string => {
   return formatted ? formatted.join("-") : "";
 };
 
-export function validateApiKey(request: Request) {
-  // Get API key from environment variable
-  const validApiKey = process.env.CRON_API_KEY;
-
-  if (!validApiKey) {
-    throw new Error("CRON_API_KEY is not configured");
-  }
-
-  // Get API key from request header
-  const apiKey = request.headers.get("x-api-key");
-
-  if (!apiKey) {
-    throw new Error("API key is missing");
-  }
-
-  if (apiKey !== validApiKey) {
-    throw new Error("Invalid API key");
-  }
-}
-
 export function shouldShowTopupPaymentInfo(topup: Topup | undefined): boolean {
   if (!topup) return false;