Rename legacy storefront app and references to carplace

Replace storefront naming across source, tests, docs, config, and production scripts. Rename the legacy top-level app directory and Carplace component files, remove duplicate storefront startup scripts, and refresh the lockfile.

carplace/src/app/(public)/app-privacy-en/page.tsx

@@ -0,0 +1,6 @@
+import React from 'react'
+import FooterContentPage from '@/components/FooterContentPage'
+
+export default function AppPrivacyEnPage() {
+  return <FooterContentPage slug="privacy-policy" forcedLanguage="en" />
+}