- 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
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