notification module

Backend/ERPCore/Domain/Entities/NotificationConfig.cs

@@ -0,0 +1,19 @@
+namespace ERPCore.Domain.Entities;
+
+/// <summary>
+/// Notification configuration (new settings module) - singleton root row.
+/// </summary>
+public class NotificationConfig
+{
+    public const int SingletonId = 1;
+
+    public int NotificationConfigId { get; set; }
+
+    public DateTime? UpdatedAt { get; set; }
+    public int? UpdatedBy { get; set; }
+    public User? UpdatedByUser { get; set; }
+
+    public uint RowVersion { get; set; }
+
+    public ICollection<NotificationConfigModule> Modules { get; set; } = new List<NotificationConfigModule>();
+}

Backend/ERPCore/Domain/Entities/NotificationConfigModule.cs

@@ -0,0 +1,14 @@
+namespace ERPCore.Domain.Entities;
+
+public class NotificationConfigModule
+{
+    public int NotificationConfigModuleId { get; set; }
+
+    public int NotificationConfigId { get; set; }
+    public NotificationConfig? NotificationConfig { get; set; }
+
+    public string ModuleKey { get; set; } = string.Empty;
+    public bool EmailEnabled { get; set; }
+    public bool SmsEnabled { get; set; }
+    public bool InAppEnabled { get; set; }
+}

Backend/ERPCore/Domain/Entities/ProductConfig.cs

@@ -1,22 +1,24 @@
 namespace ERPCore.Domain.Entities;
 
 /// <summary>
-/// Product configuration (FR-MD-11) — a <b>singleton row</b> (single-tenant, docs/00-CORE §1)
+/// Product configuration (FR-MD-11) - a singleton row (single-tenant, docs/00-CORE §1)
 /// gating optional product master-data features.
 /// <para>
 /// <see cref="SubcategoriesEnabled"/> and <see cref="BrandsEnabled"/> are enforced
 /// server-side: an Item write carrying a subcategory/brand while the flag is off is
-/// rejected with <c>CONFIG_DISABLED</c>. <see cref="ItemTypesEnabled"/> is
-/// <b>advisory only</b> — items carry no item-type reference (see <see cref="ItemType"/>),
-/// so there is nothing on a write to reject; the frontend honours it by hiding the
-/// builder's type section. Reads are never gated, so existing data stays visible after a
-/// flag is switched off.
+/// rejected with <c>CONFIG_DISABLED</c>. <see cref="ItemTypesEnabled"/> is advisory only
+/// - items carry no item-type reference (see <see cref="ItemType"/>), so there is nothing
+/// on a write to reject; the frontend honours it by hiding the variant builder.
+/// <see cref="SellingPricesEnabled"/>, <see cref="SerialNumbersEnabled"/>,
+/// <see cref="BatchListsEnabled"/> and <see cref="WarrantyPeriodsEnabled"/> are enforced
+/// on item writes and drive the create/edit screens. Reads are never gated, so existing
+/// data stays visible after a flag is switched off.
 /// </para>
 /// Model: docs/10-BACKEND-PHASE1.md Part C.1.
 /// </summary>
 public class ProductConfig
 {
-    /// <summary>Always 1 — the singleton row's id.</summary>
+    /// <summary>Always 1 - the singleton row's id.</summary>
     public const int SingletonId = 1;
 
     public int ConfigId { get; set; }
@@ -24,6 +26,10 @@ public class ProductConfig
     public bool SubcategoriesEnabled { get; set; } = true;
     public bool BrandsEnabled { get; set; } = true;
     public bool ItemTypesEnabled { get; set; } = true;
+    public bool SellingPricesEnabled { get; set; } = true;
+    public bool SerialNumbersEnabled { get; set; } = true;
+    public bool BatchListsEnabled { get; set; } = true;
+    public bool WarrantyPeriodsEnabled { get; set; } = true;
 
     public DateTime? UpdatedAt { get; set; }
 

Backend/ERPCore/Domain/Notifications/Modules/NotificationModules.cs

@@ -0,0 +1,34 @@
+namespace ERPCore.Domain.Notifications.Modules;
+
+[NotificationModule("sale.create", "Sale Created", "Raised when a sales document is created.", 10)]
+public sealed class SaleCreateNotificationModule;
+
+[NotificationModule("sale.posted", "Sale Posted", "Raised when a sales document is posted.", 20)]
+public sealed class SalePostedNotificationModule;
+
+[NotificationModule("grn.created", "GRN Created", "Raised when a goods receipt note is created.", 30)]
+public sealed class GrnCreatedNotificationModule;
+
+[NotificationModule("grn.confirmed", "GRN Confirmed", "Raised when a goods receipt note is confirmed.", 40)]
+public sealed class GrnConfirmedNotificationModule;
+
+[NotificationModule("purchase.order.created", "Purchase Order Created", "Raised when a purchase order is created.", 50)]
+public sealed class PurchaseOrderCreatedNotificationModule;
+
+[NotificationModule("purchase.order.approved", "Purchase Order Approved", "Raised when a purchase order is approved.", 60)]
+public sealed class PurchaseOrderApprovedNotificationModule;
+
+[NotificationModule("purchase.return.created", "Purchase Return Created", "Raised when a purchase return is created.", 70)]
+public sealed class PurchaseReturnCreatedNotificationModule;
+
+[NotificationModule("stock.adjustment.created", "Stock Adjustment Created", "Raised when a stock adjustment is created.", 80)]
+public sealed class StockAdjustmentCreatedNotificationModule;
+
+[NotificationModule("stock.transfer.created", "Stock Transfer Created", "Raised when a stock transfer is created.", 90)]
+public sealed class StockTransferCreatedNotificationModule;
+
+[NotificationModule("item.created", "Item Created", "Raised when an item master record is created.", 100)]
+public sealed class ItemCreatedNotificationModule;
+
+[NotificationModule("item.updated", "Item Updated", "Raised when an item master record is updated.", 110)]
+public sealed class ItemUpdatedNotificationModule;

Backend/ERPCore/Domain/Notifications/NotificationChannel.cs

@@ -0,0 +1,8 @@
+namespace ERPCore.Domain.Notifications;
+
+public enum NotificationChannel
+{
+    Email,
+    Sms,
+    InApp
+}

Backend/ERPCore/Domain/Notifications/NotificationModuleAttribute.cs

@@ -0,0 +1,18 @@
+namespace ERPCore.Domain.Notifications;
+
+[AttributeUsage(AttributeTargets.Class, AllowMultiple = false, Inherited = false)]
+public sealed class NotificationModuleAttribute : Attribute
+{
+    public string Key { get; }
+    public string Label { get; }
+    public string Description { get; }
+    public int SortOrder { get; }
+
+    public NotificationModuleAttribute(string key, string label, string description, int sortOrder)
+    {
+        Key = key;
+        Label = label;
+        Description = description;
+        SortOrder = sortOrder;
+    }
+}

Backend/ERPCore/Domain/Notifications/NotificationModuleDefinition.cs

@@ -0,0 +1,7 @@
+namespace ERPCore.Domain.Notifications;
+
+public sealed record NotificationModuleDefinition(
+    string Key,
+    string Label,
+    string Description,
+    int SortOrder);