Initial commit

lib/data/mappers/chat_mapper.dart

@@ -0,0 +1,26 @@
+import 'package:trainhub_flutter/data/database/app_database.dart';
+import 'package:trainhub_flutter/domain/entities/chat_session.dart';
+import 'package:trainhub_flutter/domain/entities/chat_message.dart';
+
+class ChatMapper {
+  ChatMapper._();
+
+  static ChatSessionEntity sessionToEntity(ChatSession row) {
+    return ChatSessionEntity(
+      id: row.id,
+      title: row.title,
+      createdAt: row.createdAt,
+      updatedAt: row.updatedAt,
+    );
+  }
+
+  static ChatMessageEntity messageToEntity(ChatMessage row) {
+    return ChatMessageEntity(
+      id: row.id,
+      sessionId: row.sessionId,
+      role: row.role,
+      content: row.content,
+      createdAt: row.createdAt,
+    );
+  }
+}