- Fix probundle exports missing images (double slides/ prefix in storage path)
- Replace manual ZipArchive with PresentationBundle + ProBundleWriter from parser plugin
- Add per-agenda-item download route and buttons for songs and slide items
- Remove text layer from image-only slides in .pro generation
- Fix image conversion: upscale small images, black bars on 2 sides max (contain)
- Add upload warnings for non-16:9 and sub-1920x1080 images (German, non-blocking)
- Update SlideFactory and all tests to use slides/ prefix in stored_filename
- Add 11 new tests (agenda download, image conversion, upload warnings)
- Migration: settings table with key (unique), value (text), timestamps
- Model: Setting with static get/set helpers using DB upsert
- Controller: SettingsController with index (Inertia) and update (JSON)
- Vue: Settings page with 4 macro fields, auto-save on blur
- Navigation: Einstellungen link in desktop + mobile nav after API-Log
- Shared props: macroSettings added to HandleInertiaRequests
- Integration: ProExportService injects macro into COPYRIGHT group slides
- Gracefully skips macro injection when settings empty/null
