docs: fix false feature claims, clarify manual-only setup process

scheilch committed Mar 10, 2026

docs: add complete end-user documentation (DE + EN) New user-facing pages (bilingual): - UEBER-OCT / ABOUT-OCT: What is OCT, why you need it - INSTALLATION / INSTALLATION-en: RPi, Docker, NAS setup guides - ERSTEINRICHTUNG / FIRST-SETUP: Setup Wizard walkthrough - BEDIENUNG / USAGE: Daily usage guide (presets, radio, settings) - FAQ / FAQ-en: Frequently asked questions Updated: - Home.md: Restructured with user guide sections - _Sidebar.md: New navigation with user/dev separation - Existing dev pages moved to Technical Reference section

scheilch committed Mar 8, 2026