Refactor: migrate Core -> Domain and reorganize projects

Large refactor that renames/moves core types into a new Govor.Domain surface and reorganizes the Application layer. Models, configurations, migrations and many files moved from Govor.Core/Govor.Data to Govor.Domain; numerous Application services, interfaces and implementations were relocated or added (authentication, friends, messages, medias, push notifications, user sessions, storage, synching, private chats, etc.). Tests updated to use Govor.Domain namespaces and adjusted project references (removed Govor.Data reference from API tests). Also updated API, Hub and mapping code and project files to reflect the new structure and naming. This is primarily a codebase-wide namespace and module reorganization to establish a Domain project and restructure application services.

Govor.Application/Messages/Parameters/DeleteMessage.cs

@@ -0,0 +1,5 @@
+namespace Govor.Application.Messages.Parameters;
+
+public record DeleteMessage(
+    Guid DeleterId,
+    Guid MessageId);

Govor.Application/Messages/Parameters/DeleteMessageResult.cs

@@ -0,0 +1,6 @@
+using Govor.Domain.Models.Messages;
+
+namespace Govor.Application.Messages.Parameters;
+
+public record DeleteMessageResult(bool IsSuccess, Exception? Exception, Message? OriginalMessage) 
+    : Result(IsSuccess, Exception, OriginalMessage?.Id ?? Guid.Empty);

Govor.Application/Messages/Parameters/EditMessage.cs

@@ -0,0 +1,7 @@
+namespace Govor.Application.Messages.Parameters;
+
+public record EditMessage(
+    Guid EditorId,
+    Guid MessageId,
+    string NewContent,
+    DateTime EditedAt);

Govor.Application/Messages/Parameters/EditMessageResult.cs

@@ -0,0 +1,9 @@
+using Govor.Domain.Models.Messages;
+
+namespace Govor.Application.Messages.Parameters;
+
+public record EditMessageResult(bool IsSuccess, Exception? Exception, Message? OriginalMessage) 
+    : Result(IsSuccess, Exception, OriginalMessage?.Id ?? Guid.Empty)
+{
+
+}

Govor.Application/Messages/Parameters/Result.cs

@@ -0,0 +1,3 @@
+namespace Govor.Application.Messages.Parameters;
+
+public record Result(bool IsSuccess, Exception Exception, Guid messageId);

Govor.Application/Messages/Parameters/SendMedia.cs

@@ -0,0 +1,3 @@
+namespace Govor.Application.Messages.Parameters;
+
+public record SendMedia(Guid MediaId, string EncryptedKey);

Govor.Application/Messages/Parameters/SendMessage.cs

@@ -0,0 +1,12 @@
+using Govor.Domain.Models.Messages;
+
+namespace Govor.Application.Messages.Parameters;
+
+public record SendMessage(
+    string EncryptContent, 
+    Guid? ReplyToMessageId,
+    Guid RecipientId,
+    RecipientType RecipientType,
+    Guid FromUserId,
+    DateTime SendAt, 
+    IEnumerable<SendMedia> Media);

Govor.Application/Messages/Parameters/SendMessageResult.cs

@@ -0,0 +1,6 @@
+using Govor.Domain.Models.Messages;
+
+namespace Govor.Application.Messages.Parameters;
+
+public record SendMessageResult(bool IsSuccess, Exception? Exception, Message Message) 
+    : Result(IsSuccess, Exception, Message?.Id ?? Guid.Empty);