Add diagram workbench UI with Modelica DoF coaching and ISO glyphs.

Ship the Next.js cycle editor with CAD chrome, technical HX symbols, Fixed/Free boundary guidance, and secondary water/air pressure drop support in the solver stack.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/web/vitest.setup.ts

@@ -0,0 +1,17 @@
+import "@testing-library/jest-dom/vitest";
+import { afterEach } from "vitest";
+import { cleanup } from "@testing-library/react";
+
+// crypto.randomUUID is used by the diagram store; jsdom may not provide it.
+const existingCrypto = (globalThis as { crypto?: Partial<Crypto> }).crypto;
+if (typeof existingCrypto?.randomUUID !== "function") {
+  let counter = 0;
+  const randomUUID = (): `${string}-${string}-${string}-${string}-${string}` =>
+    `00000000-0000-4000-8000-${String(counter++).padStart(12, "0")}` as const;
+  const cryptoStub = { ...(existingCrypto ?? {}), randomUUID } as Crypto;
+  Object.defineProperty(globalThis, "crypto", { value: cryptoStub, configurable: true });
+}
+
+afterEach(() => {
+  cleanup();
+});