Add email verification, personal calendar feed, and full SEO implementation

- Customer accounts now require email verification (hashed, single-use,
  time-limited tokens) before they can request/confirm bookings, with
  resend flows on login/account/booking widget and rate limiting.
- Admins get a private, rotatable iCalendar (ICS) subscription feed of
  their confirmed bookings and public events, timezone-correct for
  Europe/Berlin including DST, never exposing meeting passwords.
- Adds a full SEO layer: per-page canonical/OG/Twitter metadata with
  CMS-editable overrides and content-derived fallbacks, a dynamic
  sitemap.xml and robots.txt driven by real published content, JSON-LD
  (Organization/LocalBusiness, WebSite, WebPage, BreadcrumbList, Service,
  Event, BlogPosting) that never fabricates data, and a CMS-managed
  redirect table for changed slugs.
- Global ANOUMA-naming audit: the brand name is never used to label
  personal account/calendar areas anywhere in the app, CMS, or emails.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

components/PageHeader.tsx

@@ -1,6 +1,8 @@
 import type { ReactNode } from "react";
 import { Breadcrumbs, type Crumb } from "@/components/Breadcrumbs";
 import { OrganicBlob } from "@/components/OrganicBlob";
+import { JsonLd, breadcrumbJsonLd } from "@/lib/seo/jsonld";
+import { getSiteUrl } from "@/lib/seo/config";
 
 type PageHeaderProps = {
   eyebrow?: string;
@@ -9,11 +11,24 @@ type PageHeaderProps = {
   crumbs?: Crumb[];
 };
 
-export function PageHeader({ eyebrow, title, lead, crumbs }: PageHeaderProps) {
+/** Renders the visual breadcrumb trail AND its matching BreadcrumbList JSON-LD from the same `crumbs` — every page that already passes `crumbs` gets structured breadcrumb data for free. */
+export async function PageHeader({ eyebrow, title, lead, crumbs }: PageHeaderProps) {
+  const breadcrumbData = crumbs?.length
+    ? await (async () => {
+        const siteUrl = await getSiteUrl();
+        const items = [
+          { name: "Startseite", url: siteUrl },
+          ...crumbs.map((crumb) => ({ name: crumb.title, url: crumb.href ? `${siteUrl}${crumb.href}` : undefined })),
+        ];
+        return breadcrumbJsonLd(items);
+      })()
+    : null;
+
   return (
     <section className="relative overflow-hidden border-b border-anouma-taupe/10 bg-anouma-cream-light pb-16 pt-14 sm:pb-20 sm:pt-20">
       <OrganicBlob tone="rose" className="-right-20 -top-20 h-72 w-72" />
       <div className="relative mx-auto max-w-6xl px-6 sm:px-8 lg:px-12">
+        {breadcrumbData && <JsonLd data={breadcrumbData} />}
         {crumbs && <Breadcrumbs items={crumbs} />}
         {eyebrow && (
           <p className="mb-4 text-xs font-medium uppercase tracking-[0.24em] text-anouma-plum">