fix: patch @nuxt/test-utils structuredClone for cross-context objects

Vite's module runner creates objects in a separate V8 context that
structuredClone rejects. Replace with JSON roundtrip in test-utils
config resolution until upstream nuxt-site-config fix is published.

Author: harlan-zw

patches/@nuxt__test-utils.patch

@@ -0,0 +1,13 @@
+diff --git a/dist/config.mjs b/dist/config.mjs
+index 41a73e237a7ecd0c63985421737f3cf0782391ee..56c9e2ca1dfade16afb10d90cebe43803063f837 100644
+--- a/dist/config.mjs
++++ b/dist/config.mjs
+@@ -128,7 +128,7 @@ async function getVitestConfigFromNuxt(options, loadNuxtOptions = {}) {
+       },
+       test: {
+         environmentOptions: {
+-          nuxtRuntimeConfig: applyEnv(structuredClone(options.nuxt.options.runtimeConfig), {
++          nuxtRuntimeConfig: applyEnv(JSON.parse(JSON.stringify(options.nuxt.options.runtimeConfig)), {
+             prefix: "NUXT_",
+             env: await setupDotenv(defu(loadNuxtOptions.dotenv, {
+               cwd: rootDir,

pnpm-lock.yaml

@@ -43,6 +43,7 @@ packageExtensions:
 
 patchedDependencies:
   '@jsr/deno__doc@0.189.1': patches/@jsr__deno__doc@0.189.1.patch
+  '@nuxt/test-utils': patches/@nuxt__test-utils.patch
 
 savePrefix: ''