feat(website): book-a-demo & status pages, expand roadmap/contact

- /demo: book-a-demo page with a what-to-expect column + a form that
  composes a prefilled email to info@dezky.eu (interim, no backend); built
  to swap for a self-hosted scheduler later. Wire every "Book a demo" CTA
  (nav, hero, pricing, the previously-dead final-CTA button, and the
  contact/partners/migration/coming-soon CTAs) to /demo.
- /status: manually-maintained system-status page (overall banner,
  per-service rows, incident history). Live modules operational; Video/Chat
  marked coming soon.
- Roadmap: expand the board (5 items/column) + a "the bigger picture"
  themes grid + a "suggest a feature" CTA + a directional-timelines note.
- Contact: purpose-specific channels (info@ / legal@ / privacy@), a
  response-time note, and a company + "see it live" demo block.
- Drop /status from the [slug].vue stub map; tidy now-unused imports.

apps/website/pages/partners.vue

@@ -1,13 +1,11 @@
 <script setup lang="ts">
 import { ref } from 'vue'
-import { useRoute } from 'vue-router'
-import { useTheme, useCopy, goToSection } from '~/composables/useLanding'
+import { useTheme, useCopy } from '~/composables/useLanding'
 
 definePageMeta({ layout: 'page' })
 
 const t = useTheme()
 const copy = useCopy()
-const route = useRoute()
 const c = computed(() => copy.value.pages.partners)
 
 const openFaq = ref<number | null>(0)
@@ -147,7 +145,7 @@ useHead({ title: () => `${copy.value.pages.partners.label} · dezky` })
 
   <!-- CTA -->
   <LandingContainer pad="clamp(48px, 7vw, 72px) clamp(20px, 5vw, 64px) clamp(80px, 12vw, 160px)">
-    <LandingBtn variant="primary" size="lg" @click="goToSection('#final-cta', route.path)">{{ c.cta }} →</LandingBtn>
+    <LandingBtn variant="primary" size="lg" @click="navigateTo('/demo')">{{ c.cta }} →</LandingBtn>
   </LandingContainer>
 </template>