Update internal/config/config.go

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

Author: michaelmcnees

internal/config/config.go

@@ -237,7 +237,9 @@ func Load(cmd *cobra.Command) (*Config, error) {
 	if dbURL := cfg.Database.URL; dbURL != "" {
 		if parsed, err := url.Parse(dbURL); err == nil {
 			host := parsed.Hostname()
-			if host != "localhost" && host != "127.0.0.1" && host != "::1" {
+			ip := net.ParseIP(host)
+			isLoopback := host != "" && (strings.EqualFold(host, "localhost") || (ip != nil && ip.IsLoopback()))
+			if !isLoopback {
 				q := parsed.Query()
 				if q.Get("sslmode") == "prefer" {
 					log.Printf("WARNING: database URL uses sslmode=prefer for non-loopback host %q; consider sslmode=require for production", host)