refactor: Rename url flag variable to targetURL to resolve package shadowing

main.go

@@ -10,10 +10,10 @@ import (
 )
 
 func main() {
-	url := flag.String("url", "", "URL to check for broken links")
+	targetURL := flag.String("url", "", "URL to check for broken links")
 	flag.Parse()
 
-	if *url == "" {
+	if *targetURL == "" {
 		log.Fatal("Please provide a URL using the -url flag")
 	}
 
@@ -21,13 +21,13 @@ func main() {
 	startTime := time.Now()
 
 	checker := NewLinkChecker()
-	brokenLinks, err := checker.CheckLinks(*url)
+	brokenLinks, err := checker.CheckLinks(*targetURL)
 	if err != nil {
 		log.Fatal(err)
 	}
 
 	// Extract domain from URL
-	parsedURL, err := url.Parse(*url)
+	parsedURL, err := url.Parse(*targetURL)
 	if err != nil {
 		log.Fatal(err)
 	}