Initial commit: ANOUMA website with Payload CMS, WebRTC meetings, and booking system

- Next.js 16 App Router site with the ANOUMA design system
- Payload CMS (PostgreSQL) for offers, events, posts and page content
- WebRTC video-call system with custom signaling server
- SMTP email reminders and booking-request notifications
- Customer accounts, calendar-based availability, and booking workflow

fields/slug.ts

@@ -0,0 +1,40 @@
+import type { Field } from "payload";
+
+function slugify(value: string): string {
+  return value
+    .toLowerCase()
+    .trim()
+    .replace(/ä/g, "ae")
+    .replace(/ö/g, "oe")
+    .replace(/ü/g, "ue")
+    .replace(/ß/g, "ss")
+    .replace(/[^a-z0-9]+/g, "-")
+    .replace(/^-+|-+$/g, "");
+}
+
+/**
+ * A "Slug" field that auto-fills itself from `sourceField` (usually the
+ * title) whenever left empty, so the admin never has to think about URLs.
+ */
+export function slugField(sourceField = "title"): Field {
+  return {
+    name: "slug",
+    type: "text",
+    label: "Slug (URL)",
+    unique: true,
+    index: true,
+    admin: {
+      position: "sidebar",
+      description: "Wird automatisch aus dem Titel erzeugt, kann aber angepasst werden.",
+    },
+    hooks: {
+      beforeValidate: [
+        ({ value, data }) => {
+          if (value) return slugify(String(value));
+          const source = data?.[sourceField];
+          return typeof source === "string" ? slugify(source) : value;
+        },
+      ],
+    },
+  };
+}