feat: bundle private Windows runtimes with settings switches

scripts/runtime-before-pack.cjs

@@ -0,0 +1,7 @@
+module.exports = async function beforePack(context) {
+  if (context.electronPlatformName !== 'win32' || context.arch !== 1) {
+    throw new Error('YCode bundled runtimes support Windows x64 only; do not ship x64 runtimes for another target.')
+  }
+  const { verifyRuntimeBundle } = await import('./runtime-bundle.mjs')
+  await verifyRuntimeBundle()
+}