feat: replace getting-started with coming soon page

Deployment path not yet available; commercial plans in preparation.
Replace step-by-step install guide with a coming-soon page and
mailto CTA. Update hero + footer CTA on landing page accordingly.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/pages/Home.tsx

@@ -225,12 +225,12 @@ export default function Home() {
             No SaaS dependency. Runs on your infrastructure.
           </p>
           <div className="flex flex-wrap gap-4 justify-center">
-            <Link
-              to="/docs/getting-started"
+            <a
+              href="mailto:christian@manivong.de"
               className="inline-flex items-center gap-2 px-6 py-3 rounded-lg bg-sky-600 hover:bg-sky-500 text-white font-medium transition-colors"
             >
-              Get started →
-            </Link>
+              Get in touch →
+            </a>
             <Link
               to="/features"
               className="inline-flex items-center gap-2 px-6 py-3 rounded-lg border border-slate-700 hover:border-slate-500 text-slate-300 hover:text-slate-100 transition-colors"
@@ -436,13 +436,16 @@ bash scripts/deploy.sh 192.168.1.10`}</code>
       {/* 8 — CTA Footer */}
       <section className="py-24">
         <div className="max-w-7xl mx-auto px-6 text-center">
-          <h2 className="text-2xl md:text-3xl font-bold text-slate-100 mb-8">Start managing your network.</h2>
-          <Link
-            to="/docs/getting-started"
+          <h2 className="text-2xl md:text-3xl font-bold text-slate-100 mb-4">Interested?</h2>
+          <p className="text-base text-slate-400 leading-relaxed mb-8">
+            Deployment options and hosted plans are coming. Get in touch for early access.
+          </p>
+          <a
+            href="mailto:christian@manivong.de"
             className="inline-flex items-center gap-2 px-6 py-3 rounded-lg bg-sky-600 hover:bg-sky-500 text-white font-medium transition-colors"
           >
-            Read the docs →
-          </Link>
+            Get in touch →
+          </a>
         </div>
       </section>
     </>