feat: pre-existing local changes — fischerei, verband, modules, members, packages

Commits all remaining uncommitted local work:

- apps/web: fischerei, verband, modules, members-cms, documents,
  newsletter, meetings, site-builder, courses, bookings, events,
  finance pages and components
- apps/web: marketing page updates, layout, paths config,
  next.config.mjs, styles/makerkit.css
- apps/web/i18n: documents, fischerei, marketing, verband (de+en)
- packages/features: finance, fischerei, member-management,
  module-builder, newsletter, sitzungsprotokolle, verbandsverwaltung
  server APIs and components
- packages/ui: button.tsx updates
- pnpm-lock.yaml

apps/web/app/[locale]/(marketing)/_components/animate-on-scroll.tsx

@@ -0,0 +1,37 @@
+'use client';
+
+import { useEffect, useRef } from 'react';
+
+export function AnimateOnScroll(props: {
+  children: React.ReactNode;
+  className?: string;
+}) {
+  const ref = useRef<HTMLDivElement>(null);
+
+  useEffect(() => {
+    const el = ref.current;
+    if (!el) return;
+
+    const observer = new IntersectionObserver(
+      (entries) => {
+        for (const entry of entries) {
+          if (entry.isIntersecting) {
+            const reveals = el.querySelectorAll('.reveal');
+            reveals.forEach((r) => r.setAttribute('data-visible', 'true'));
+            observer.disconnect();
+          }
+        }
+      },
+      { threshold: 0.15 },
+    );
+
+    observer.observe(el);
+    return () => observer.disconnect();
+  }, []);
+
+  return (
+    <div ref={ref} className={props.className}>
+      {props.children}
+    </div>
+  );
+}