first commit

Models/CustomerInvoice.cs

@@ -0,0 +1,33 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace Fitness_core_BE.Models
+{
+    public class CustomerInvoice
+    {
+        [Key]
+        public Guid CustomerInvoiceId { get; set; }
+        public Guid FKCustomerSubscriptionId { get; set; }
+        [ForeignKey("FKCustomerSubscriptionId")]
+        public virtual CustomerSubscription CustomerSubscription { get; set; }
+
+        public Guid FKClientId { get; set; }
+        [ForeignKey("FKClientId")]
+        public virtual Client Client { get; set; }
+
+        public Guid FKUserId { get; set; }
+        [ForeignKey("FKUserId")]
+        public virtual User User { get; set; }
+
+        public decimal Amount { get; set; }
+        public string Status { get; set; } = "Pending";
+
+        // Approval gate for the renewal workflow: false means this invoice was auto-generated by
+        // the daily renewal sweep and is awaiting staff approve/change-plan/reject. Independent of
+        // Status and of CustomerSubscription.IsActive. Defaults true so every other invoice-
+        // creation path (onboarding, plan change, manual billing) is unaffected.
+        public bool IsActive { get; set; } = true;
+
+        public DateTime CustomerInvoiceDate { get; set; } = DateTime.UtcNow;
+    }
+}