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## 1. Production Hardening - ErrorBoundary Komponente hinzugefügt (verhindert White-Screen bei Render-Fehlern) - Graceful Degradation mit "Erneut versuchen" und "Seite neu laden" ## 2. Performance - useMemo in Dashboard: computeStats, urgentProducts, categoryBreakdown - useMemo in Statistics: expiryDist in Single-Pass statt 5x filter - useMemo in ProductList: filtered-Array wird gecached - usePWAInstall: isIOS() als Module-Konstante statt bei jedem Render ## 3. Security - CSV Export: alle Felder durch escCsv() geschickt (verhindert CSV Injection) - Barcode-Validierung: lookupBarcode() prüft auf gültiges EAN/UPC-Format ## 4. Dead Code entfernt - exportExcelXML() aus db.ts entfernt (nirgends verwendet) - ImageCaptureModal.tsx gelöscht (nicht verwendet lt. CLAUDE.md) - Ergebnis: 1.3 kB weniger CSS ## 5. PWA - Install-Prompt von bottom-4 auf bottom-20 (überlappt nicht mehr mit Navigation) ## 6. Tests - Von 15 auf 37 Tests erweitert - Neue Tests: formatDate, formatDuration, getStatusColor, getStatusBadgeColor - Neue Tests: lookupBarcode Input-Validierung (leer, nicht-numerisch, zu kurz/lang) - Neue Tests: computeStats (Kategorien, Lagerorte, Ablaufstatus, minStock-Edge-Case) - Neue Tests: Boundary-Werte (Tag 0, Tag 7, Tag 59/60) https://claude.ai/code/session_0169CbohMRqddD1LjPg8FmXf
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1. Production Hardening
2. Performance
3. Security
4. Dead Code entfernt
5. PWA
6. Tests
https://claude.ai/code/session_0169CbohMRqddD1LjPg8FmXf