feat(commands): register download_directml_package command (P2)

src-tauri/src/lib.rs

@@ -176,6 +176,7 @@ pub fn run() {
             commands::set_preferred_backend,
             commands::list_models,
             commands::download_npu_package,
+            commands::download_directml_package,
             commands::list_diarization_models,
             commands::download_model,
             commands::remove_model,