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/admin/AdminCalendarView.tsx

@@ -1,5 +1,6 @@
 import type { AdminViewServerProps } from "payload";
 import { getAdminCalendarItems, type AdminCalendarItem } from "@/lib/booking/adminCalendar";
+import { CalendarFeedPanel } from "./CalendarFeedPanel";
 import styles from "./AdminCalendarView.module.css";
 
 const WEEKDAY_LABELS = ["Mo", "Di", "Mi", "Do", "Fr", "Sa", "So"];
@@ -58,6 +59,12 @@ export async function AdminCalendarView({ initPageResult }: AdminViewServerProps
   rangeEnd.setDate(rangeEnd.getDate() + 41); // 6 full weeks
 
   const items = await getAdminCalendarItems(req.payload, { from: rangeStart, to: rangeEnd });
+
+  // Local API (overrideAccess: true by default) so this can see
+  // calendarFeedTokenHash despite its field-level access being locked to
+  // "nobody" for every real API path — see collections/Users.ts.
+  const currentUser = req.user ? await req.payload.findByID({ collection: "users", id: req.user.id, req }) : null;
+  const calendarFeedConfigured = Boolean((currentUser as { calendarFeedTokenHash?: string | null } | null)?.calendarFeedTokenHash);
   const itemsByDay = new Map<string, AdminCalendarItem[]>();
   for (const item of items) {
     const key = dateKey(new Date(item.date));
@@ -134,6 +141,8 @@ export async function AdminCalendarView({ initPageResult }: AdminViewServerProps
               </span>
             ))}
           </div>
+
+          <CalendarFeedPanel initiallyConfigured={calendarFeedConfigured} />
         </div>
 
         <div className={styles.schedule}>