Add console log for first run completion in price comparison function to enhance debugging and monitoring.

index.js

@@ -49,6 +49,7 @@ async function compareAndSave(productsPrice) {
     for (const product of productsPrice) {
       sendMessage(`Początkowa cena **${product.name}**: ${product.price}`);
     }
+    console.log("First run completed");
     isFirstRun = false;
   }