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)/layout.tsx

@@ -1,3 +1,4 @@
+import { CookieBanner } from '@/components/cookie-banner';
 import { Logo } from '@/components/logo';
 import { MarketingAuthButtons } from '@/components/marketing-auth-buttons';
 import { MarketingMobileMenu } from '@/components/marketing-mobile-menu';
@@ -48,12 +49,21 @@ export default function MarketingLayout({ children }: { children: React.ReactNod
             <Link href="/docs" className="transition-colors hover:text-[--color-fg]">
               Docs
             </Link>
+            <Link href="/contact" className="transition-colors hover:text-[--color-fg]">
+              Contact
+            </Link>
             <Link href="/security" className="transition-colors hover:text-[--color-fg]">
               Security
             </Link>
             <Link href="/privacy" className="transition-colors hover:text-[--color-fg]">
               Privacy
             </Link>
+            <Link href="/agb" className="transition-colors hover:text-[--color-fg]">
+              AGB
+            </Link>
+            <Link href="/impressum" className="transition-colors hover:text-[--color-fg]">
+              Impressum
+            </Link>
             <Link href="/terms" className="transition-colors hover:text-[--color-fg]">
               Terms
             </Link>
@@ -61,6 +71,7 @@ export default function MarketingLayout({ children }: { children: React.ReactNod
           <div>&copy; {new Date().getFullYear()} BuildMyMCPServer</div>
         </div>
       </footer>
+      <CookieBanner />
     </div>
   );
 }