- Remove localStorage from all 4 Redux slices (products, orders, expenses, customers)
- Layout fetches all data from API on mount; adds logout button with active nav highlighting
- Wire API calls in Products, Orders, Expenses pages for all CRUD operations
- DataImport uses POST /orders/bulk for CSV upserts and API for PDF slip orders
- MissingProductsModal creates products via API
- Relax Order model: optional customerId, embedded customer, fees, printingCost on items, default paymentStatus=paid
- Relax Expense model: free-string category, add taxDeductible/vendor/reference fields
- Add printingCost to Product model
- Add POST /orders/bulk endpoint for upsert-by-orderNumber
- Raise rate limit to 1000 req/15min for bulk imports
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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