refactor: remove unused classes and consolidate ViewModels in Core

Remove 9 unused types from Core (duplicate extension classes, TableSpec, ColumnSpec, LotLocation), move ComponentLotViewModel and OperatorViewModel from Client to Core, and refactor DataSync.Dev to use pipeline-based configuration. Fix Login.razor to use UserInfoDto directly.

NEW/src/JdeScoping.Client/Models/ComponentLotViewModel.cs

@@ -1,21 +0,0 @@
-namespace JdeScoping.Client.Models;
-
-/// <summary>
-/// View model for component lot filter.
-/// </summary>
-public class ComponentLotViewModel
-{
-    public string LotNumber { get; set; } = string.Empty;
-    public string ItemNumber { get; set; } = string.Empty;
-
-    public override bool Equals(object? obj)
-    {
-        if (obj is ComponentLotViewModel other)
-        {
-            return LotNumber == other.LotNumber && ItemNumber == other.ItemNumber;
-        }
-        return false;
-    }
-
-    public override int GetHashCode() => HashCode.Combine(LotNumber, ItemNumber);
-}

NEW/src/JdeScoping.Client/Models/OperatorViewModel.cs

@@ -1,22 +0,0 @@
-namespace JdeScoping.Client.Models;
-
-/// <summary>
-/// View model for operator filter.
-/// </summary>
-public class OperatorViewModel
-{
-    public int AddressNumber { get; set; }
-    public string UserId { get; set; } = string.Empty;
-    public string FullName { get; set; } = string.Empty;
-
-    public override bool Equals(object? obj)
-    {
-        if (obj is OperatorViewModel other)
-        {
-            return UserId == other.UserId;
-        }
-        return false;
-    }
-
-    public override int GetHashCode() => UserId.GetHashCode();
-}

NEW/src/JdeScoping.Client/Models/SearchUpdate.cs

@@ -1,15 +0,0 @@
-namespace JdeScoping.Client.Models;
-
-/// <summary>
-/// SignalR message for search status updates.
-/// </summary>
-public record SearchUpdate
-{
-    public int Id { get; init; }
-    public string Name { get; init; } = string.Empty;
-    public string UserName { get; init; } = string.Empty;
-    public string Status { get; init; } = string.Empty;
-    public DateTime? SubmitDt { get; init; }
-    public DateTime? StartDt { get; init; }
-    public DateTime? EndDt { get; init; }
-}

NEW/src/JdeScoping.Client/Models/StatusUpdate.cs

@@ -1,10 +0,0 @@
-namespace JdeScoping.Client.Models;
-
-/// <summary>
-/// SignalR message for processor status updates.
-/// </summary>
-public record StatusUpdate
-{
-    public string Message { get; init; } = string.Empty;
-    public DateTime? Timestamp { get; init; }
-}

NEW/src/JdeScoping.Client/Models/UserInfoViewModel.cs

@@ -1,38 +0,0 @@
-namespace JdeScoping.Client.Models;
-
-/// <summary>
-/// Client-side view model for authenticated user information.
-/// Mirrors the server-side UserInfo model returned by /api/auth/login and /api/auth/me.
-/// </summary>
-public class UserInfoViewModel
-{
-    /// <summary>
-    /// User's login username.
-    /// </summary>
-    public string Username { get; set; } = string.Empty;
-
-    /// <summary>
-    /// User's first name.
-    /// </summary>
-    public string FirstName { get; set; } = string.Empty;
-
-    /// <summary>
-    /// User's last name.
-    /// </summary>
-    public string LastName { get; set; } = string.Empty;
-
-    /// <summary>
-    /// User's display name (computed on server, provided here for convenience).
-    /// </summary>
-    public string DisplayName { get; set; } = string.Empty;
-
-    /// <summary>
-    /// User's organization title.
-    /// </summary>
-    public string Title { get; set; } = string.Empty;
-
-    /// <summary>
-    /// User's email address.
-    /// </summary>
-    public string EmailAddress { get; set; } = string.Empty;
-}

NEW/src/JdeScoping.Client/Models/ValidCombination.cs

@@ -6,17 +6,17 @@ namespace JdeScoping.Client.Models;
 /// </summary>
 public class ValidCombination
 {
-    public int Id { get; init; }
-    public string Name { get; init; } = string.Empty;
-    public bool Timespan { get; init; }
-    public bool WorkOrder { get; init; }
-    public bool ItemNumber { get; init; }
-    public bool ProfitCenter { get; init; }
-    public bool WorkCenter { get; init; }
-    public bool ComponentLot { get; init; }
-    public bool Operator { get; init; }
-    public bool ItemOperationMis { get; init; }
-    public bool ExtractMis { get; init; }
+    public int Id { get; private init; }
+    public string Name { get; private init; } = string.Empty;
+    public bool Timespan { get; private init; }
+    public bool WorkOrder { get; private init; }
+    public bool ItemNumber { get; private init; }
+    public bool ProfitCenter { get; private init; }
+    public bool WorkCenter { get; private init; }
+    public bool ComponentLot { get; private init; }
+    public bool Operator { get; private init; }
+    public bool ItemOperationMis { get; private init; }
+    public bool ExtractMis { get; private init; }
 
     /// <summary>
     /// Checks if the given filter flags match this combination.
@@ -48,7 +48,7 @@ public class ValidCombination
     /// </summary>
     public static IReadOnlyList<ValidCombination> GetAll() =>
     [
-        new ValidCombination
+        new()
         {
             Id = 10,
             Name = "Work Order",
@@ -62,7 +62,7 @@ public class ValidCombination
             ItemOperationMis = false,
             ExtractMis = false
         },
-        new ValidCombination
+        new()
         {
             Id = 20,
             Name = "Component Lot",
@@ -76,7 +76,7 @@ public class ValidCombination
             ItemOperationMis = false,
             ExtractMis = false
         },
-        new ValidCombination
+        new()
         {
             Id = 30,
             Name = "Time Span + Profit Center",
@@ -90,7 +90,7 @@ public class ValidCombination
             ItemOperationMis = false,
             ExtractMis = false
         },
-        new ValidCombination
+        new()
         {
             Id = 40,
             Name = "Time Span + Work Center",
@@ -104,7 +104,7 @@ public class ValidCombination
             ItemOperationMis = false,
             ExtractMis = false
         },
-        new ValidCombination
+        new()
         {
             Id = 50,
             Name = "Time Span + Operator",
@@ -118,7 +118,7 @@ public class ValidCombination
             ItemOperationMis = false,
             ExtractMis = false
         },
-        new ValidCombination
+        new()
         {
             Id = 60,
             Name = "Time Span + Profit Center + Item Number",
@@ -132,7 +132,7 @@ public class ValidCombination
             ItemOperationMis = false,
             ExtractMis = false
         },
-        new ValidCombination
+        new()
         {
             Id = 70,
             Name = "Time Span + Profit Center + Item/Operation/MIS",
@@ -146,7 +146,7 @@ public class ValidCombination
             ItemOperationMis = true,
             ExtractMis = false
         },
-        new ValidCombination
+        new()
         {
             Id = 80,
             Name = "Time Span + Profit Center + Work Order + Item/Operation/MIS",
@@ -160,7 +160,7 @@ public class ValidCombination
             ItemOperationMis = true,
             ExtractMis = false
         },
-        new ValidCombination
+        new()
         {
             Id = 90,
             Name = "Time Span + Profit Center + Extract MIS",
@@ -174,7 +174,7 @@ public class ValidCombination
             ItemOperationMis = false,
             ExtractMis = true
         },
-        new ValidCombination
+        new()
         {
             Id = 100,
             Name = "Time Span + Work Center + Item Number",
@@ -188,7 +188,7 @@ public class ValidCombination
             ItemOperationMis = false,
             ExtractMis = false
         },
-        new ValidCombination
+        new()
         {
             Id = 110,
             Name = "Time Span + Work Center + Extract MIS",
@@ -202,7 +202,7 @@ public class ValidCombination
             ItemOperationMis = false,
             ExtractMis = true
         },
-        new ValidCombination
+        new()
         {
             Id = 120,
             Name = "Time Span + Work Center + Item/Operation/MIS",
@@ -216,7 +216,7 @@ public class ValidCombination
             ItemOperationMis = true,
             ExtractMis = false
         },
-        new ValidCombination
+        new()
         {
             Id = 130,
             Name = "Time Span + Work Center + Work Order + Item/Operation/MIS",
@@ -230,7 +230,7 @@ public class ValidCombination
             ItemOperationMis = true,
             ExtractMis = false
         },
-        new ValidCombination
+        new()
         {
             Id = 140,
             Name = "Time Span + Item Number",
@@ -244,7 +244,7 @@ public class ValidCombination
             ItemOperationMis = false,
             ExtractMis = false
         },
-        new ValidCombination
+        new()
         {
             Id = 150,
             Name = "Time Span + Work Center + Operator",
@@ -258,7 +258,7 @@ public class ValidCombination
             ItemOperationMis = false,
             ExtractMis = false
         },
-        new ValidCombination
+        new()
         {
             Id = 160,
             Name = "Time Span + Profit Center + Operator",