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>

app/(frontend)/angebote/page.tsx

@@ -7,25 +7,41 @@ import { Button } from "@/components/Button";
 import { CTA } from "@/components/CTA";
 import { Reveal } from "@/components/Reveal";
 import { getOffers } from "@/lib/payload/content";
-import { getAngeboteIntroGlobal } from "@/lib/payload/globals";
+import { getAngeboteIntroGlobal, getSEOSettingsGlobal } from "@/lib/payload/globals";
 import { groupOffersByCategory, moodForOffer } from "@/lib/angebote";
 import { mediaAlt, mediaUrl } from "@/lib/payload/media";
+import { resolveSeo } from "@/lib/seo/resolve";
+import { buildMetadata } from "@/lib/seo/metadata";
+import { getSiteUrl } from "@/lib/seo/config";
+import { JsonLd, webPageJsonLd } from "@/lib/seo/jsonld";
+import { siteConfig } from "@/lib/site";
 
 export const dynamic = "force-dynamic";
 
+const FALLBACK_DESCRIPTION =
+  "Prozessbegleitung, Doula-Begleitung, Kindergruppen und Singkreise — die Angebote von Anouma im Überblick.";
+
 export async function generateMetadata(): Promise<Metadata> {
-  const intro = await getAngeboteIntroGlobal();
-  return {
-    title: intro.title || "Angebote",
-    description:
-      intro.lead ||
-      "Prozessbegleitung, Doula-Begleitung, Kindergruppen und Singkreise — die Angebote von Anouma im Überblick.",
-  };
+  const [intro, seoSettings] = await Promise.all([getAngeboteIntroGlobal(), getSEOSettingsGlobal()]);
+  const resolved = resolveSeo({
+    seo: intro.seo,
+    fallbackTitle: `Begleitung für dich und deine Familie – ${siteConfig.name}`,
+    fallbackDescription: () => intro.lead || seoSettings.defaultDescription || FALLBACK_DESCRIPTION,
+    defaultOgImage: seoSettings.defaultOgImage,
+  });
+  return buildMetadata({
+    title: resolved.title,
+    description: resolved.description,
+    path: "/angebote",
+    ogImageUrl: resolved.ogImageUrl,
+    keywords: resolved.keywords,
+  });
 }
 
 export default async function AngebotePage() {
   const [intro, offers] = await Promise.all([getAngeboteIntroGlobal(), getOffers()]);
   const groups = groupOffersByCategory(offers);
+  const siteUrl = await getSiteUrl();
 
   const prozessbegleitung = groups.find((g) => g.category === "prozessbegleitung")?.offers[0];
   const doula = groups.find((g) => g.category === "doula-begleitung")?.offers[0];
@@ -34,6 +50,13 @@ export default async function AngebotePage() {
 
   return (
     <>
+      <JsonLd
+        data={webPageJsonLd({
+          name: intro.title || "Angebote",
+          description: intro.lead || FALLBACK_DESCRIPTION,
+          url: `${siteUrl}/angebote`,
+        })}
+      />
       <PageHeader
         title={intro.title || "Angebote"}
         lead={intro.lead}