build: pin demo toolchains

web/src/test/setup.ts

@@ -0,0 +1 @@
+export {};

web/src/test/toolchain.test.ts

@@ -0,0 +1,13 @@
+import { describe, expect, it } from "vitest";
+import { toolchainLabels } from "../config/toolchain";
+
+describe("toolchain labels", () => {
+  it("exposes the versions shown by the operations console", () => {
+    expect(toolchainLabels).toEqual({
+      foundry: "Foundry 1.7.1",
+      solidity: "Solidity 0.8.35",
+      openZeppelin: "OpenZeppelin 5.6.1",
+      proxy: "UUPS"
+    });
+  });
+});