fix(install): mirror node-domexception override for npm (#69819)

* fix(install): mirror node-domexception override for npm

* docs(changelog): credit npm install override fix

* fix(install): pin domexception override exactly

* docs(changelog): drop leftover npm fix merge markers

* Update CHANGELOG.md

test/scripts/root-package-overrides.test.ts

@@ -0,0 +1,25 @@
+import fs from "node:fs";
+import path from "node:path";
+import { describe, expect, it } from "vitest";
+
+type RootPackageManifest = {
+  overrides?: Record<string, string>;
+  pnpm?: {
+    overrides?: Record<string, string>;
+  };
+};
+
+function readRootManifest(): RootPackageManifest {
+  const manifestPath = path.resolve(process.cwd(), "package.json");
+  return JSON.parse(fs.readFileSync(manifestPath, "utf8")) as RootPackageManifest;
+}
+
+describe("root package override guardrails", () => {
+  it("pins the node-domexception alias exactly in npm and pnpm overrides", () => {
+    const manifest = readRootManifest();
+    const pnpmOverride = manifest.pnpm?.overrides?.["node-domexception"];
+
+    expect(pnpmOverride).toBe("npm:@nolyfill/domexception@1.0.28");
+    expect(manifest.overrides?.["node-domexception"]).toBe(pnpmOverride);
+  });
+});