Refactor AnnotationCreateDto and update appsettings.json

Refactored the `AnnotationCreateDto` class:
- Changed `ElementId` from `int` to `long` and made it mutable.
- Marked `Name`, `Value`, and `Type` as `[Obsolete]` with defaults.
- Added `[Obsolete]` attributes to `Width` and `Height`.
- Introduced a new `Page` property to replace `SignatureDto`.

Updated `appsettings.json`:
- Set `Api.BaseUrl` to an empty string.

EnvelopeGenerator.Application/Common/Dto/AnnotationDto.cs

@@ -8,22 +8,31 @@ public record AnnotationCreateDto
     /// <summary>
     /// 
     /// </summary>
-    public int ElementId { get; init; }
+    public long Id { get; set; }
 
     /// <summary>
     /// 
     /// </summary>
-    public string Name { get; init; } = null!;
+    [Obsolete("Not required for DevExpress")]
+    public int ElementId { get; init; } = -1;
 
     /// <summary>
     /// 
     /// </summary>
-    public string Value { get; init; } = null!;
+    [Obsolete("Not required for DevExpress")]
+    public string Name { get; init; } = string.Empty;
 
     /// <summary>
     /// 
     /// </summary>
-    public string Type { get; init; } = null!;
+    [Obsolete("Not required for DevExpress")]
+    public string Value { get; init; } = string.Empty;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    [Obsolete("Not required for DevExpress")]
+    public string Type { get; init; } = string.Empty;
 
     /// <summary>
     /// 
@@ -38,12 +47,19 @@ public record AnnotationCreateDto
     /// <summary>
     /// 
     /// </summary>
+    [Obsolete("Not required for DevExpress")]
     public double? Width { get; init; }
 
     /// <summary>
     /// 
     /// </summary>
+    [Obsolete("Not required for DevExpress")]
     public double? Height { get; init; }
+
+    /// <summary>
+    /// Added to eliminate the need for SignatureDto in DevExpress 
+    /// </summary>
+    public int? Page { get; init; }
 }
 
 /// <summary>

EnvelopeGenerator.ReceiverUI/wwwroot/appsettings.json

@@ -1,6 +1,6 @@
 {
   "Api": {
-    "BaseUrl": "https://localhost:8088",
+    "BaseUrl": "",
     "ForceToUseFakeDocument": true
   }
 }