feat: Swiss-compliant launch — Impressum/AGB/Contact, support panel, DSG exports, cookie banner

Legal (Swiss minimum, no individual named):
- Impressum page (UWG Art. 3 lit. s) — provider, contact via support panel,
  no email required, jurisdiction = Switzerland
- AGB page — subscription terms, payment, cancellation, suspension on payment
  fail, 14-day money-back, AI-processing-per-tier disclosure, Swiss law +
  Swiss venue, modeled after typical Schweizer SaaS terms
- Privacy: Stripe added as subprocessor with full data-flow disclosure

Support panel replaces email contact entirely:
- @bmm/db: support_status enum + support_tickets + support_messages tables,
  migration applied to prod DB
- @bmm/api: support routes (user create/list/view/reply, admin list/view/reply
  /set-status), public /v1/contact for logged-out visitors with per-IP rate
  limit of 3 submissions/day to prevent spam-flood
- Web: /settings/support (list + new), /settings/support/[id] (conversation),
  /admin/support, /admin/support/[id]
- Public /contact form with email collection for guest tickets

Data rights (DSG Art. 25 / GDPR Art. 15+20):
- /v1/account/export returns user-scoped JSON of profile, org, servers,
  builds, audit, support tickets and messages — excludes hashes, encrypted
  secrets, other-user data
- /settings/account: download button + deletion-via-ticket workflow

Production-readiness gaps closed:
- org.suspended now blocks /v1/servers POST and /v1/servers/preview (402);
  webhook flagged this state but enforcement was missing
- Cookie banner: minimal, essential-cookies-only disclosure (Swiss DSG +
  GDPR compliant without dark-pattern consent UI), mounts on both layouts

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/web/app/(marketing)/impressum/page.tsx

@@ -0,0 +1,95 @@
+import { pageMetadata } from '@/lib/seo';
+import Link from 'next/link';
+
+export const metadata = pageMetadata({
+  title: 'Impressum',
+  description: 'Legal information for BuildMyMCPServer (Switzerland).',
+  path: '/impressum',
+});
+
+export default function Impressum() {
+  return (
+    <div className="mx-auto max-w-3xl px-6 py-16">
+      <header className="mb-10">
+        <div className="text-[11px] uppercase tracking-[0.16em] text-[--color-fg-subtle]">
+          Impressum
+        </div>
+        <h1 className="mt-2 text-[32px] font-semibold tracking-tight">Impressum</h1>
+        <p className="mt-3 text-[14px] leading-relaxed text-[--color-fg-muted]">
+          Angaben gemäss UWG Art. 3 Abs. 1 lit. s (Schweiz).
+        </p>
+      </header>
+
+      <div className="space-y-8">
+        <section>
+          <h2 className="text-[16px] font-semibold tracking-tight">Anbieter</h2>
+          <div className="mt-2 text-[13.5px] leading-relaxed text-[--color-fg-muted]">
+            <p>BuildMyMCPServer</p>
+            <p>Schweiz</p>
+            <p className="mt-2 text-[12px] text-[--color-fg-subtle]">
+              Postanschrift auf Anfrage über das Support-Panel.
+            </p>
+          </div>
+        </section>
+
+        <section>
+          <h2 className="text-[16px] font-semibold tracking-tight">Kontakt</h2>
+          <p className="mt-2 text-[13.5px] leading-relaxed text-[--color-fg-muted]">
+            Sämtliche Kontaktanfragen laufen über unser integriertes Support-Panel — ohne
+            Account erreichbar unter{' '}
+            <Link href="/contact" className="text-[--color-accent] underline">
+              /contact
+            </Link>
+            . Eingeloggte Nutzer:innen verwenden{' '}
+            <Link href="/settings/support" className="text-[--color-accent] underline">
+              /settings/support
+            </Link>
+            . Wir antworten in der Regel innerhalb von einem Werktag.
+          </p>
+        </section>
+
+        <section>
+          <h2 className="text-[16px] font-semibold tracking-tight">Mehrwertsteuer</h2>
+          <p className="mt-2 text-[13.5px] leading-relaxed text-[--color-fg-muted]">
+            UID-Nummer wird im ausgestellten Beleg geführt. Bei steuerrechtlichen Anfragen
+            kontaktiere uns über das Support-Panel.
+          </p>
+        </section>
+
+        <section>
+          <h2 className="text-[16px] font-semibold tracking-tight">Haftungsausschluss</h2>
+          <p className="mt-2 text-[13.5px] leading-relaxed text-[--color-fg-muted]">
+            Inhalte dieser Webseite werden mit grösstmöglicher Sorgfalt erstellt. Für Richtigkeit,
+            Vollständigkeit und Aktualität wird jedoch keine Gewähr übernommen. Für Inhalte
+            externer Links sind ausschliesslich deren Betreiber verantwortlich.
+          </p>
+        </section>
+
+        <section>
+          <h2 className="text-[16px] font-semibold tracking-tight">Anwendbares Recht</h2>
+          <p className="mt-2 text-[13.5px] leading-relaxed text-[--color-fg-muted]">
+            Es gilt schweizerisches Recht unter Ausschluss kollisionsrechtlicher Bestimmungen.
+            Gerichtsstand ist der Sitz des Anbieters.
+          </p>
+        </section>
+
+        <section>
+          <h2 className="text-[16px] font-semibold tracking-tight">Weiterführend</h2>
+          <p className="mt-2 text-[13.5px] leading-relaxed text-[--color-fg-muted]">
+            <Link href="/privacy" className="text-[--color-accent] underline">
+              Datenschutzerklärung
+            </Link>{' '}
+            ·{' '}
+            <Link href="/agb" className="text-[--color-accent] underline">
+              AGB
+            </Link>{' '}
+            ·{' '}
+            <Link href="/security" className="text-[--color-accent] underline">
+              Security
+            </Link>
+          </p>
+        </section>
+      </div>
+    </div>
+  );
+}