🐛 fix: remove incorrect argument from LoadConfig call

- Fix compilation error
- LoadConfig takes no arguments

Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>

pkg/bdd/testserver/server.go

@@ -240,7 +240,7 @@ func (s *Server) GetBaseURL() string {
 
 func createTestConfig(port int) *config.Config {
 	// Load actual config to respect environment variables
-	cfg, err := config.LoadConfig("")
+	cfg, err := config.LoadConfig()
 	if err != nil {
 		log.Warn().Err(err).Msg("Failed to load config, using defaults")
 		// Fallback to defaults if config loading fails