Refactor: Revert to hard deletes for messages. Remove IsDeleted flag and update repository and configurations accordingly.

Govor.Application/Interfaces/Messages/IMessageService.cs

@@ -0,0 +1,30 @@
+using Govor.Application.Interfaces.Messages.Parameters;
+using Govor.Core.Models; // For Result
+
+namespace Govor.Application.Interfaces.Messages;
+
+// Combining IChatService and IGroupService functionalities relevant to messages
+public interface IMessageService
+{
+    Task<SendMessageResult> SendMessageAsync(SendMessage messageParameters);
+    Task<EditMessageResult> EditMessageAsync(EditMessage messageParameters);
+    Task<DeleteMessageResult> DeleteMessageAsync(DeleteMessage messageParameters);
+
+    // Potentially other message-related methods like:
+    // Task<GetMessagesResult> GetMessagesAsync(Guid userId, Guid chatId, RecipientType chatType, int pageNumber, int pageSize);
+    // Task<Result> MarkMessageAsReadAsync(Guid userId, Guid messageId);
+}
+
+// Define specific result types for clarity, including original message for notifications if needed
+
+public record SendMessageResult(bool IsSuccess, Exception? Exception, Guid MessageId)
+    : Result(IsSuccess, Exception, MessageId);
+
+public record EditMessageResult(bool IsSuccess, Exception? Exception, Message? OriginalMessage)
+    : Result(IsSuccess, Exception, OriginalMessage?.Id ?? Guid.Empty)
+{
+    // OriginalMessage can be useful for the Hub to know details like RecipientType, RecipientId for notifications
+}
+
+public record DeleteMessageResult(bool IsSuccess, Exception? Exception, Message? OriginalMessage)
+    : Result(IsSuccess, Exception, OriginalMessage?.Id ?? Guid.Empty);