- New Excel export service for weekly DAK summary sheets (c2s / c2s_g_s variants)
- New API endpoint GET /reports/wochenuebersicht (admin-only)
- ICD import auto-detects format (coding template vs. Wochenübersicht KVNR-based)
- New admin frontend page with download form
- Route + sidebar navigation entry
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
