fix(digital-print): khong bu hao in nhanh, chuan hoa binh bai A4/A5/A6/Namecard va phoi giay INTC

feat: cap nhat bang gia in nhanh kem giay INTC va in gia cong Konica C12000

feat(papers): update T9.26 price list, remove price/kg, add supplier filter and smart search modal

fix(imposition): correct imposition calculation, dual-tab print and paper cutting diagrams

feat(offset): update offset pricing: under 3000 impressions includes plates (65x86: 1.2M with 86 gripper, under 65x43: 900k)

fix(engine): sanitize calculate API inputs and safeguard selectedFinishing loops

fix: checkpoint full 118 Thuan Phat papers into printcal.db and auto-migrate legacy databases

feat: update paper price database from Thuan Phat T4.26 Excel sheet (118 papers)

style: refine and simplify UI, adopt spacious 2-column layout and chip-based finishing selector

feat: PrintCal - Smart offset and digital print pricing calculator with ERP management

Initial commit from Create Next App