Add Chromium-only Blender WebEngine parity work

tools/web/check-offline-reproducibility.mjs

@@ -0,0 +1,15 @@
+import assert from "node:assert/strict";
+import crypto from "node:crypto";
+import fs from "node:fs";
+import { execFileSync } from "node:child_process";
+
+const creator = new URL("./create-offline-release.mjs", import.meta.url);
+const archive = new URL("../../release/blender-web-offline.tar.gz", import.meta.url);
+const sourceArchive = new URL("../../release/blender-web-corresponding-source.tar.gz", import.meta.url);
+const digest = (file) => crypto.createHash("sha256").update(fs.readFileSync(file)).digest("hex");
+execFileSync(process.execPath, [creator.pathname], { stdio: "inherit" });
+const first = [digest(archive), digest(sourceArchive)];
+execFileSync(process.execPath, [creator.pathname], { stdio: "inherit" });
+const second = [digest(archive), digest(sourceArchive)];
+assert.deepEqual(second, first, "offline binary/source archives are not reproducible");
+process.stdout.write(`offline-reproducibility-ok binary=${second[0]} source=${second[1]}\n`);