chore: import upstream snapshot with attribution

scripts/check/check-supported-node-runtime.ts

@@ -0,0 +1,20 @@
+#!/usr/bin/env node
+
+import {
+  getNodeRuntimeSupport,
+  getNodeRuntimeWarning,
+} from "../../src/shared/utils/nodeRuntimeSupport.ts";
+
+const support = getNodeRuntimeSupport();
+
+if (!support.nodeCompatible) {
+  console.error(`Unsupported or insecure Node.js runtime detected: ${support.nodeVersion}`);
+  console.error(getNodeRuntimeWarning() || "Unsupported Node.js runtime.");
+  console.error(`Supported secure runtimes: ${support.supportedDisplay}`);
+  console.error(`Recommended version: ${support.recommendedVersion}`);
+  process.exit(1);
+}
+
+console.log(
+  `Node.js ${support.nodeVersion} satisfies OmniRoute secure runtime policy (${support.supportedRange}).`
+);