Invoice Page (/orders/:id/invoice):
- A4-ready layout (210mm x 297mm)
- Store header, invoice number, QR code
- Billing/shipping address sections
- Styled items table with alternating rows
- Totals summary with conditional display
- Thank you footer
- Back to Order and Print buttons
Label Page (/orders/:id/label):
- 4x6 inch thermal label layout
- Ship To address with phone
- Items list (physical products only)
- Shipping method
- QR code for scanning
- Back to Order and Print buttons
Order Detail:
- Removed print-mode logic
- Removed print-only layouts
- Invoice/Label buttons now link to dedicated pages
- Label button still hidden for virtual-only orders
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