新增聊天记录

keyBoard/Class/AiTalk/M/KBChatHistoryModel.h

@@ -0,0 +1,43 @@
+//
+//  KBChatHistoryModel.h
+//  keyBoard
+//
+//  Created by Kiro on 2026/1/26.
+//
+
+#import <Foundation/Foundation.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+/// 消息发送者类型
+typedef NS_ENUM(NSInteger, KBChatSender) {
+    KBChatSenderUser = 0,      // 用户
+    KBChatSenderAssistant = 1  // AI 助手
+};
+
+/// 聊天记录模型
+@interface KBChatHistoryModel : NSObject
+
+/// 消息 ID
+@property (nonatomic, assign) NSInteger messageId;
+
+/// 发送者（0-用户，1-AI）
+@property (nonatomic, assign) KBChatSender sender;
+
+/// 消息内容
+@property (nonatomic, copy) NSString *content;
+
+/// 创建时间
+@property (nonatomic, copy) NSString *createdAt;
+
+#pragma mark - 扩展属性
+
+/// 是否是用户消息
+@property (nonatomic, assign, readonly) BOOL isUserMessage;
+
+/// 是否是 AI 消息
+@property (nonatomic, assign, readonly) BOOL isAssistantMessage;
+
+@end
+
+NS_ASSUME_NONNULL_END