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.Core/Enums/CashTransactionType.cs

@@ -0,0 +1,10 @@
+namespace Meezi.Core.Enums;
+
+public enum CashTransactionType
+{
+    OrderPayment = 0,
+    Refund = 1,
+    Expense = 2,
+    Withdrawal = 3,
+    Deposit = 4
+}

src/Meezi.Core/Enums/CouponType.cs

@@ -0,0 +1,8 @@
+namespace Meezi.Core.Enums;
+
+public enum CouponType
+{
+    Percentage = 0,
+    FixedAmount = 1,
+    FreeItem = 2
+}

src/Meezi.Core/Enums/CustomerGroup.cs

@@ -0,0 +1,9 @@
+namespace Meezi.Core.Enums;
+
+public enum CustomerGroup
+{
+    Regular = 0,
+    Vip = 1,
+    New = 2,
+    Employee = 3
+}

src/Meezi.Core/Enums/DeliveryPlatform.cs

@@ -0,0 +1,9 @@
+namespace Meezi.Core.Enums;
+
+public enum DeliveryPlatform
+{
+    Direct = 0,
+    Snappfood = 1,
+    Tap30 = 2,
+    Digikala = 3
+}

src/Meezi.Core/Enums/DemoRequestStatus.cs

@@ -0,0 +1,10 @@
+namespace Meezi.Core.Enums;
+
+public enum DemoRequestStatus
+{
+    New = 0,
+    Contacted = 1,
+    DemoScheduled = 2,
+    Converted = 3,
+    Rejected = 4
+}

src/Meezi.Core/Enums/EmployeeRole.cs

@@ -0,0 +1,11 @@
+namespace Meezi.Core.Enums;
+
+public enum EmployeeRole
+{
+    Owner = 0,
+    Manager = 1,
+    Cashier = 2,
+    Waiter = 3,
+    Chef = 4,
+    Delivery = 5
+}

src/Meezi.Core/Enums/ExpenseCategory.cs

@@ -0,0 +1,11 @@
+namespace Meezi.Core.Enums;
+
+public enum ExpenseCategory
+{
+    Supplies = 0,
+    Utilities = 1,
+    Salary = 2,
+    Rent = 3,
+    Maintenance = 4,
+    Other = 5
+}

src/Meezi.Core/Enums/LeaveStatus.cs

@@ -0,0 +1,8 @@
+namespace Meezi.Core.Enums;
+
+public enum LeaveStatus
+{
+    Pending = 0,
+    Approved = 1,
+    Rejected = 2
+}

src/Meezi.Core/Enums/OrderSource.cs

@@ -0,0 +1,11 @@
+namespace Meezi.Core.Enums;
+
+public enum OrderSource
+{
+    Pos = 0,
+    GuestQr = 1,
+    Kiosk = 2,
+    SnappFood = 3,
+    Tap30 = 4,
+    Digikala = 5
+}

src/Meezi.Core/Enums/OrderStatus.cs

@@ -0,0 +1,11 @@
+namespace Meezi.Core.Enums;
+
+public enum OrderStatus
+{
+    Pending = 0,
+    Confirmed = 1,
+    Preparing = 2,
+    Ready = 3,
+    Delivered = 4,
+    Cancelled = 5
+}

src/Meezi.Core/Enums/OrderType.cs

@@ -0,0 +1,8 @@
+namespace Meezi.Core.Enums;
+
+public enum OrderType
+{
+    DineIn = 0,
+    Takeaway = 1,
+    Delivery = 2
+}

src/Meezi.Core/Enums/PaymentMethod.cs

@@ -0,0 +1,8 @@
+namespace Meezi.Core.Enums;
+
+public enum PaymentMethod
+{
+    Cash = 0,
+    Card = 1,
+    Credit = 2
+}

src/Meezi.Core/Enums/PaymentProvider.cs

@@ -0,0 +1,31 @@
+namespace Meezi.Core.Enums;
+
+public enum PaymentProvider
+{
+    ZarinPal = 0,
+    Tara = 1,
+    SnappPay = 2
+}
+
+public static class PaymentProviderIds
+{
+    public const string ZarinPal = "zarinpal";
+    public const string Tara = "tara";
+    public const string SnappPay = "snapppay";
+
+    public static PaymentProvider? Parse(string? id) => id?.Trim().ToLowerInvariant() switch
+    {
+        ZarinPal => PaymentProvider.ZarinPal,
+        Tara => PaymentProvider.Tara,
+        SnappPay => PaymentProvider.SnappPay,
+        _ => null
+    };
+
+    public static string ToId(PaymentProvider provider) => provider switch
+    {
+        PaymentProvider.ZarinPal => ZarinPal,
+        PaymentProvider.Tara => Tara,
+        PaymentProvider.SnappPay => SnappPay,
+        _ => ZarinPal
+    };
+}

src/Meezi.Core/Enums/PaymentStatus.cs

@@ -0,0 +1,9 @@
+namespace Meezi.Core.Enums;
+
+public enum PaymentStatus
+{
+    Pending = 0,
+    Completed = 1,
+    Failed = 2,
+    Refunded = 3
+}

src/Meezi.Core/Enums/PlanTier.cs

@@ -0,0 +1,9 @@
+namespace Meezi.Core.Enums;
+
+public enum PlanTier
+{
+    Free = 0,
+    Pro = 1,
+    Business = 2,
+    Enterprise = 3
+}

src/Meezi.Core/Enums/QueueTicketStatus.cs

@@ -0,0 +1,9 @@
+namespace Meezi.Core.Enums;
+
+public enum QueueTicketStatus
+{
+    Waiting = 0,
+    Called = 1,
+    Done = 2,
+    Cancelled = 3
+}

src/Meezi.Core/Enums/ReservationStatus.cs

@@ -0,0 +1,12 @@
+namespace Meezi.Core.Enums;
+
+public enum ReservationStatus
+{
+    Pending = 0,
+    Confirmed = 1,
+    Cancelled = 2,
+    /// <summary>Guest arrived; order may be open at POS.</summary>
+    Seated = 3,
+    /// <summary>Paid and visit finished.</summary>
+    Completed = 4
+}

src/Meezi.Core/Enums/ShiftStatus.cs

@@ -0,0 +1,7 @@
+namespace Meezi.Core.Enums;
+
+public enum ShiftStatus
+{
+    Open = 0,
+    Closed = 1
+}

src/Meezi.Core/Enums/ShiftType.cs

@@ -0,0 +1,8 @@
+namespace Meezi.Core.Enums;
+
+public enum ShiftType
+{
+    Morning = 0,
+    Evening = 1,
+    DayOff = 2
+}

src/Meezi.Core/Enums/StockMovementKind.cs

@@ -0,0 +1,9 @@
+namespace Meezi.Core.Enums;
+
+public enum StockMovementKind
+{
+    Manual = 0,
+    OrderDeduction = 1,
+    OrderRestore = 2,
+    Purchase = 3
+}

src/Meezi.Core/Enums/SubscriptionPaymentStatus.cs

@@ -0,0 +1,8 @@
+namespace Meezi.Core.Enums;
+
+public enum SubscriptionPaymentStatus
+{
+    Pending = 0,
+    Completed = 1,
+    Failed = 2
+}

src/Meezi.Core/Enums/SupportTicketPriority.cs

@@ -0,0 +1,8 @@
+namespace Meezi.Core.Enums;
+
+public enum SupportTicketPriority
+{
+    Low = 0,
+    Normal = 1,
+    High = 2
+}

src/Meezi.Core/Enums/SupportTicketStatus.cs

@@ -0,0 +1,10 @@
+namespace Meezi.Core.Enums;
+
+public enum SupportTicketStatus
+{
+    Open = 0,
+    InProgress = 1,
+    WaitingMerchant = 2,
+    Resolved = 3,
+    Closed = 4
+}

src/Meezi.Core/Enums/TableBoardStatus.cs

@@ -0,0 +1,9 @@
+namespace Meezi.Core.Enums;
+
+public enum TableBoardStatus
+{
+    Free = 0,
+    Busy = 1,
+    Reserved = 2,
+    Cleaning = 3
+}

src/Meezi.Core/Enums/TicketMessageSenderKind.cs

@@ -0,0 +1,7 @@
+namespace Meezi.Core.Enums;
+
+public enum TicketMessageSenderKind
+{
+    Merchant = 0,
+    Admin = 1
+}

src/Meezi.Core/Enums/UnifiedDeliveryStatus.cs

@@ -0,0 +1,12 @@
+namespace Meezi.Core.Enums;
+
+/// <summary>Platform-agnostic delivery order status before mapping to <see cref="OrderStatus"/>.</summary>
+public enum UnifiedDeliveryStatus
+{
+    Pending = 0,
+    Confirmed = 1,
+    Preparing = 2,
+    Ready = 3,
+    Delivered = 4,
+    Cancelled = 5
+}