Completed initial database design

Sealed qualifying public classes
Migrated database changes

LiteCharms.Features/Email/Models/Attachment.cs

@@ -1,6 +1,6 @@
 namespace LiteCharms.Features.Email.Models;
 
-public class Attachment
+public sealed class Attachment
 {
     public string? Name { get; set; }
 

LiteCharms.Features/Email/Models/Body.cs

@@ -1,6 +1,6 @@
 namespace LiteCharms.Features.Email.Models;
 
-public class Body : IDisposable
+public sealed class Body : IDisposable
 {
     public string? Message { get; set; }
 

LiteCharms.Features/Email/Models/BodyProperties.cs

@@ -1,6 +1,6 @@
 namespace LiteCharms.Features.Email.Models;
 
-public class BodyProperties
+public sealed class BodyProperties
 {
     public bool IsHtml { get; set; }
 

LiteCharms.Features/Email/Models/Message.cs

@@ -1,6 +1,6 @@
 namespace LiteCharms.Features.Email.Models;
 
-public class Message : IDisposable
+public sealed class Message : IDisposable
 {
     public Party? Sender { get; set; }
 

LiteCharms.Features/Email/Models/Party.cs

@@ -1,6 +1,6 @@
 namespace LiteCharms.Features.Email.Models;
 
-public class Party
+public sealed class Party
 {
     public string? Name { get; set; }
 

LiteCharms.Features/Email/Models/Response.cs

@@ -1,6 +1,6 @@
 namespace LiteCharms.Features.Email.Models;
 
-public class Response
+public sealed class Response
 {
     public int Code { get; set; }