moving

apps/web/vitest.config.ts

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+import { defineConfig } from "vitest/config";
+import react from "@vitejs/plugin-react-swc";
+import path from "path";
+
+// React/Vite tests load a Next.js dependency chain that still imports Node's
+// deprecated built-in `punycode`; propagate the narrow suppression to Vitest
+// workers so expected upstream noise does not hide real test failures.
+if (!process.env.NODE_OPTIONS?.includes('--disable-warning=DEP0040')) {
+  process.env.NODE_OPTIONS = `${process.env.NODE_OPTIONS ?? ''} --disable-warning=DEP0040`.trim();
+}
+
+export default defineConfig({
+  plugins: [react()],
+  test: {
+    environment: "jsdom",
+    globals: true,
+    setupFiles: ["./src/test/setup.ts"],
+    include: ["src/**/*.{test,spec}.{ts,tsx}"],
+    // jsdom environment setup is heavy (~3s/file); under full parallel load the
+    // event loop starves and render-heavy waitFor/findBy assertions overran the
+    // default 5s timeout intermittently (every observed failure was a timeout,
+    // and the failing set varied run-to-run — classic load flakiness, not logic:
+    // the same tests pass sub-second in isolation). Give generous headroom so the
+    // suite is deterministic in CI, plus one retry to absorb transient spikes.
+    testTimeout: 20000,
+    hookTimeout: 20000,
+    retry: 1,
+  },
+  resolve: {
+    alias: { "@": path.resolve(__dirname, "./src") },
+  },
+});