feat(macos): configuration window + curl-backed macOS updater (#71)

src/main/runtime/update/release-metadata-policy.ts

@@ -0,0 +1,15 @@
+type AppUpdateMetadata = {
+  available: boolean;
+  version: string;
+  canUpdate?: boolean;
+};
+
+export function shouldFetchReleaseMetadataForPlatform(
+  platform: NodeJS.Platform,
+  appUpdate: AppUpdateMetadata,
+): boolean {
+  if (platform !== 'darwin') {
+    return true;
+  }
+  return appUpdate.canUpdate !== false;
+}