Add a chart directory

internal/utils/workdir/workdir.go

@@ -27,7 +27,10 @@ func CreateWorkdir(ctx context.Context, path string) (workdir string, err error)
 		if err != nil {
 			return workdir, err
 		}
+	}
 
+	if err := os.Mkdir(workdir+"/.charts", os.ModePerm); err != nil {
+		return "", err
 	}
 	return workdir, nil
 }