feat(landing): Cutover-Doku + AASA + 301-Redirects + marketing-kit 0.3.0
- STATUS.md: Landing-Cutover-Sektion (2026-05-22 19:30, Subdomain-Migration
pageta.com → Landing, app.pageta.com → Web-App).
- nginx.conf: AASA application/json + 301-Redirects für alte App-Pfade
(article/*, lese-liste/*, feed, konto, markierungen, recherche, auth, offline).
- AASA-File in public/.well-known/apple-app-site-association für
Universal-Link-Kontinuität.
- marketing-kit auf ^0.3.0 (zieht JSON-LD-Schemas + Cross-Linking-Footer).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>