Add migration to include AccruedExpensesCode in gl_account_config table

- Introduced a new column 'AccruedExpensesCode' of type varchar(20) to the 'gl_account_config' table.
- Added SQL command to update existing records with a default value of '2300' for the 'AccruedExpensesCode' where it is currently null.

Backend/ERPCore/Dtos/Approvals/ApprovalDtos.cs

@@ -10,7 +10,7 @@ public sealed record ApprovalStepDto(int Level, ApprovalDecision Decision, int D
 public sealed record ApprovalConfigDto(
     int StockAdjustmentLevels, decimal StockAdjustmentLevel2ThresholdValue,
     int PriceAdjustmentLevels, decimal PriceAdjustmentLevel2ThresholdPercent,
-    IReadOnlyList<int> Level2RoleIds, DateTime? UpdatedAt);
+    IReadOnlyList<int> Level2RoleIds, DateTime? UpdatedAt, int WastageLevels = 0);
 
 public sealed class UpdateApprovalConfigRequest
 {
@@ -20,6 +20,9 @@ public sealed class UpdateApprovalConfigRequest
     [Range(0, 1000)] public decimal PriceAdjustmentLevel2ThresholdPercent { get; set; }
     /// <summary>Roles allowed to give the second approval; empty = anyone with the Approve action.</summary>
     public List<int> Level2RoleIds { get; set; } = new();
+
+    /// <summary>0 = wastage posts on save, 2 = two approvals first. Null keeps the stored value (an older client that doesn't know the setting).</summary>
+    [Range(0, 2)] public int? WastageLevels { get; set; }
 }
 
 public sealed class ApproveRequest

Backend/ERPCore/Dtos/Config/GlAccountConfigDtos.cs

@@ -47,4 +47,6 @@ public sealed class UpdateGlAccountConfigRequest
     [MaxLength(GlAccountConfig.CodeMaxLength)] public string? CogsAccountCode { get; set; }
     [MaxLength(GlAccountConfig.CodeMaxLength)] public string? InventoryLossAccountCode { get; set; }
     [MaxLength(GlAccountConfig.CodeMaxLength)] public string? CashAccountCode { get; set; }
+    /// <summary>Optional so an older client that doesn't know this role can't blank it out: null keeps the stored code.</summary>
+    [MaxLength(GlAccountConfig.CodeMaxLength)] public string? AccruedExpensesCode { get; set; }
 }