feat: Wave 1 Foundation - Database, OAuth, Sync, Files, Layout, Email (T2-T7)
T2: Database Schema + All Migrations
- 10 migrations: users extension, services, songs, song_groups, song_slides,
song_arrangements, song_arrangement_groups, service_songs, slides, cts_sync_log
- 9 Eloquent models with relationships and casts
- 9 factory classes for testing
- Tests: DatabaseSchemaTest (2 tests, 26 assertions) ✅
T3: ChurchTools OAuth Provider
- Custom Socialite provider for ChurchTools OAuth2
- AuthController with redirect/callback/logout
- Replaced Breeze login with OAuth-only (German UI)
- Removed all Breeze register/password-reset pages
- Tests: OAuthTest (9 tests, 54 assertions) ✅
T4: CTS API Service + Sync Command
- ChurchToolsService wrapping 5pm-HDH/churchtools-api
- SyncChurchToolsCommand (php artisan cts:sync)
- SyncController for refresh button
- CCLI-based song matching
- Tests: ChurchToolsSyncTest (2 tests) ✅
T5: File Conversion Service
- FileConversionService with letterbox/pillarbox to 1920×1080
- ConvertPowerPointJob (queued) with LibreOffice + spatie/pdf-to-image
- ZIP extraction and recursive processing
- Thumbnail generation (320×180)
- Tests: FileConversionTest (2 tests, 21 assertions) ✅
T6: Shared Vue Components
- AuthenticatedLayout with nav, user info, refresh button
- useAutoSave composable (500ms debounce)
- FlashMessage, ConfirmDialog, LoadingSpinner components
- HandleInertiaRequests middleware with shared props
- Tests: SharedPropsTest (7 tests) ✅
T7: Email Configuration
- MissingSongRequest mailable (German)
- Email template with song info and service link
- SONG_REQUEST_EMAIL config
- Tests: MissingSongMailTest (2 tests, 10 assertions) ✅
All tests passing: 30/30 (233 assertions)
All UI text in German with 'Du' form
Wave 1 complete: 7/7 tasks ✅
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