feat(website): add Nuxt 4 marketing landing page

New standalone apps/website (Nuxt 4) serving the public marketing site at
dezky.local / www.dezky.local. The customer portal moves off the root domain
to app.dezky.local only.

Landing page ported from the Dezky design handoff: light theme, Danish
default, hero variant A, with a working da/en toggle. Self-contained colour
system threaded through components (utils/landingTokens.ts), full bilingual
copy (utils/landingCopy.ts), and shared state (composables/useLanding.ts).
Sections live under components/landing/* with the Node logo under
components/brand/*.

Wired into docker-compose (website service, volume, Traefik labels, network
aliases) and bootstrap.sh (hosts list + service URLs).

apps/website/pages/index.vue

@@ -0,0 +1,39 @@
+<script setup lang="ts">
+// Dezky marketing landing page. Ported from the Claude Design handoff
+// (Landing Page.html → landing-app.jsx + landing-sections.jsx). Light theme,
+// Danish default, hero variant A — the production defaults the user landed on.
+// Section order matches the design exactly.
+import { useTheme, useCopy, useLang } from '~/composables/useLanding'
+
+const t = useTheme()
+const copy = useCopy()
+const lang = useLang()
+
+const description = computed(() => copy.value.hero.sub)
+
+useHead({
+  title: 'dezky · suveræn produktivitet',
+  htmlAttrs: { lang },
+  meta: [
+    { name: 'description', content: description },
+  ],
+})
+</script>
+
+<template>
+  <div :style="{ background: t.bg, color: t.fg, minHeight: '100vh' }">
+    <LandingNav />
+    <LandingHero />
+    <LandingProblem />
+    <LandingSuite />
+    <LandingHowItWorks />
+    <LandingSovereignty />
+    <LandingCompare />
+    <LandingWhitelabel />
+    <LandingStack />
+    <LandingPricing />
+    <LandingFaq />
+    <LandingFinalCta />
+    <LandingFooter />
+  </div>
+</template>