feat(api): .NET 10 multi-tenant REST API

Full backend implementation:
- Multi-tenant cafe/restaurant management (menus, orders, tables, staff)
- POS order flow with ZarinPal and Snappfood payment integration
- OTP authentication via Kavenegar SMS
- QR digital menu with public discover/finder endpoints
- Customer loyalty, coupons, CRM
- PostgreSQL via EF Core, Redis for caching/sessions
- Background jobs, webhook handlers
- Full migration history

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

src/Meezi.API/Models/Kitchen/KitchenStationDtos.cs

@@ -0,0 +1,24 @@
+namespace Meezi.API.Models.Kitchen;
+
+public record KitchenStationDto(
+    string Id,
+    string? BranchId,
+    string Name,
+    string? PrinterIp,
+    int PrinterPort,
+    int SortOrder,
+    int CategoryCount);
+
+public record CreateKitchenStationRequest(
+    string Name,
+    string? BranchId,
+    string? PrinterIp,
+    int PrinterPort = 9100,
+    int SortOrder = 0);
+
+public record UpdateKitchenStationRequest(
+    string? Name,
+    string? BranchId,
+    string? PrinterIp,
+    int? PrinterPort,
+    int? SortOrder);