Updated the grade mapping logic in HrmsMenuItemForMapping.cs to map Contractual and MTO/TE/Intern to MANAGEMENT and Unassigned (and empty values) to NON_MANAGEMENT.

The FromGradeType method in HrmsMenuItemForMapping was modified to handle the new mapping rules, ensuring that menu items and lunch order items align with the updated grade-to-menu mapping:
Contractual and MTO/TE/Intern are now mapped to MANAGEMENT menu.

Unassigned and empty values are mapped to NON_MANAGEMENT.

Services/HrmsMenuItemForMapping.cs

@@ -0,0 +1,45 @@
+namespace UtopiaCanteenSystem.Services;
+
+/// <summary>
+/// Maps HRMS <c>employee_rfid_tag.grade_type</c> to <c>menu_item.item_for</c>.
+/// Menu rows only use MANAGEMENT / NON_MANAGEMENT; other grades must map to one of those.
+/// Contractual and MTO/TE/Intern use the management menu; Unassigned uses non-management.
+/// </summary>
+public static class HrmsMenuItemForMapping
+{
+    /// <summary>
+    /// Returns MANAGEMENT or NON_MANAGEMENT for menu queries. Never returns empty.
+    /// </summary>
+    public static string FromGradeType(string? gradeType)
+    {
+        var compact = ToCompactAlphaNum(gradeType);
+        if (string.IsNullOrEmpty(compact))
+            return "NON_MANAGEMENT";
+
+        if (compact == "management")
+            return "MANAGEMENT";
+
+        if (compact == "nonmanagement")
+            return "NON_MANAGEMENT";
+
+        if (compact == "contractual" || compact == "mtoteintern")
+            return "MANAGEMENT";
+
+        if (compact == "unassigned")
+            return "NON_MANAGEMENT";
+
+        if (compact.StartsWith("non", StringComparison.Ordinal) && compact.Contains("management", StringComparison.Ordinal))
+            return "NON_MANAGEMENT";
+
+        // Any other label (e.g. future grade codes) — use non-management menu so items still resolve.
+        return "NON_MANAGEMENT";
+    }
+
+    private static string ToCompactAlphaNum(string? s)
+    {
+        if (string.IsNullOrWhiteSpace(s))
+            return string.Empty;
+        var chars = s.Trim().ToLowerInvariant().Where(char.IsLetterOrDigit).ToArray();
+        return new string(chars);
+    }
+}

Services/MenuLookupService.cs

@@ -237,7 +237,7 @@ public class MenuLookupService : IMenuLookupService
           AND mi.item_for = @itemFor
         ORDER BY mi.item_name;";
 
-        var itemFor = GetItemForFromGradeType(gradeType);
+        var itemFor = HrmsMenuItemForMapping.FromGradeType(gradeType);
 
         await using var conn = new MySqlConnection(connectionString);
         await conn.OpenAsync(cancellationToken).ConfigureAwait(false);
@@ -265,19 +265,6 @@ public class MenuLookupService : IMenuLookupService
 
         return list;
     }
-    private static string GetItemForFromGradeType(string? gradeType)
-    {
-        var value = (gradeType ?? string.Empty).Trim().ToLowerInvariant();
-
-        return value switch
-        {
-            "management" => "MANAGEMENT",
-            "nonmanagement" => "NON_MANAGEMENT",
-            "non_management" => "NON_MANAGEMENT",
-            _ => string.Empty
-        };
-    }
-
     private static string GetString(MySqlDataReader reader, int ordinal)
     {
         if (reader.IsDBNull(ordinal)) return string.Empty;

Services/SyncService.cs

@@ -212,7 +212,7 @@ public class SyncService : ISyncService
                     if (lunchOrderId > 0)
                     {
                         var mealItems = SplitMealItems(record.MealItems);
-                        var itemFor = GradeTypeToItemFor(record.grade_type);
+                        var itemFor = HrmsMenuItemForMapping.FromGradeType(record.grade_type);
 
                         foreach (var itemName in mealItems)
                         {
@@ -335,18 +335,6 @@ public class SyncService : ISyncService
         }
     }
 
-    private static string GradeTypeToItemFor(string? gradeType)
-    {
-        var value = (gradeType ?? string.Empty).Trim().ToLowerInvariant();
-        return value switch
-        {
-            "management" => "MANAGEMENT",
-            "nonmanagement" => "NON_MANAGEMENT",
-            "non_management" => "NON_MANAGEMENT",
-            _ => string.Empty
-        };
-    }
-
     private static IReadOnlyList<string> SplitMealItems(string? mealItems)
     {
         if (string.IsNullOrWhiteSpace(mealItems))