Add debug logging to NewUserWebDAVClient to diagnose URL construction

go_cloud/internal/storage/nextcloud.go

@@ -69,6 +69,8 @@ func NewUserWebDAVClient(nextcloudBaseURL, username, password string) *WebDAVCli
 	baseURL := strings.Split(nextcloudBaseURL, "/remote.php")[0]
 	// Build the full WebDAV URL for this user
 	fullURL := fmt.Sprintf("%s/remote.php/dav/files/%s", baseURL, username)
+	
+	fmt.Printf("[WEBDAV-USER] Input URL: %s, Base: %s, Full: %s, User: %s\n", nextcloudBaseURL, baseURL, fullURL, username)
 
 	return &WebDAVClient{
 		baseURL:    fullURL,