feat: hybrid cloud sync + fix table/KOT state after payment

feat: KDS prep time freeze on completion + REOPENED badge for returning orders

feat: auto-print KOT/bill on order/payment, post-payment success screen, browser print fallback

feat: add Pine Labs EDC integration and WhatsApp conversational ordering

feat: make per-item notes always visible in POS and captain cart views

feat: add per-item comments in POS cart with notes in cumulative KDS view

feat: add Swiggy/Zomato integration with webhook infrastructure, online order management, and platform config

feat: add thermal printer management with routing rules and print bill button

feat: add print settings tab + fix cleaning table color consistency

fix: self-healing counter prevents order number collisions

feat: auto-remove completed orders from KDS — timer stops, new KOTs bring order back

feat: add KOT History drawer to KDS for traceability and reverification

fix: WAL checkpoint before backup — DB was 4KB (schema only) because WAL held all data

feat: redesign KDS with item-level food-ready, order grouping, and pending side pane

fix: disable AllowCredentials when CORS origins is wildcard - Fiber panics on this combination

fix: include cmd/server directory - was excluded by bare 'server' pattern in gitignore

Initial commit: HSS POS restaurant management system