添加新接口：查看指定智能体最近50条用户聊天记录

--AgentChatHistoryService.java 指定智能体最近50条用户聊天记录定义
--AgentChatHistoryServiceImpl.javaAgentChatHistoryService.java 实现指定智能体最近50条用户聊天记录方法
--AgentChatHistoryType.java 添加智能体聊天记录类型枚举
--AgentChatHistoryUserVO.java 展示用户聊天记录vo
--AgentController.java 添加新接口

main/manager-api/src/main/java/xiaozhi/modules/agent/Enums/AgentChatHistoryType.java

@@ -0,0 +1,21 @@
+package xiaozhi.modules.agent.Enums;
+
+
+import lombok.Getter;
+
+/**
+ * 智能体聊天记录类型
+ */
+@Getter
+public enum AgentChatHistoryType {
+
+    USER((byte) 1),
+    AGENT((byte) 2);
+
+    private final byte value;
+
+    AgentChatHistoryType(byte i) {
+        this.value = i;
+    }
+
+}

main/manager-api/src/main/java/xiaozhi/modules/agent/controller/AgentController.java

@@ -47,6 +47,7 @@ import xiaozhi.modules.agent.service.AgentChatHistoryService;
 import xiaozhi.modules.agent.service.AgentPluginMappingService;
 import xiaozhi.modules.agent.service.AgentService;
 import xiaozhi.modules.agent.service.AgentTemplateService;
+import xiaozhi.modules.agent.vo.AgentChatHistoryUserVO;
 import xiaozhi.modules.agent.vo.AgentInfoVO;
 import xiaozhi.modules.device.entity.DeviceEntity;
 import xiaozhi.modules.device.service.DeviceService;
@@ -181,6 +182,23 @@ public class AgentController {
         List<AgentChatHistoryDTO> result = agentChatHistoryService.getChatHistoryBySessionId(id, sessionId);
         return new Result<List<AgentChatHistoryDTO>>().ok(result);
     }
+    @GetMapping("/{id}/chat-history/user")
+    @Operation(summary = "获取智能体聊天记录（用户）")
+    @RequiresPermissions("sys:role:normal")
+    public Result<List<AgentChatHistoryUserVO>> getRecentlyFiftyByAgentId(
+            @PathVariable("id") String id) {
+        // 获取当前用户
+        UserDetail user = SecurityUser.getUser();
+
+        // 检查权限
+        if (!agentService.checkAgentPermission(id, user.getId())) {
+            return new Result<List<AgentChatHistoryUserVO>>().error("没有权限查看该智能体的聊天记录");
+        }
+
+        // 查询聊天记录
+        List<AgentChatHistoryUserVO> data = agentChatHistoryService.getRecentlyFiftyByAgentId(id);
+        return new Result<List<AgentChatHistoryUserVO>>().ok(data);
+    }
 
     @PostMapping("/audio/{audioId}")
     @Operation(summary = "获取音频下载ID")

main/manager-api/src/main/java/xiaozhi/modules/agent/service/AgentChatHistoryService.java

@@ -9,6 +9,7 @@ import xiaozhi.common.page.PageData;
 import xiaozhi.modules.agent.dto.AgentChatHistoryDTO;
 import xiaozhi.modules.agent.dto.AgentChatSessionDTO;
 import xiaozhi.modules.agent.entity.AgentChatHistoryEntity;
+import xiaozhi.modules.agent.vo.AgentChatHistoryUserVO;
 
 /**
  * 智能体聊天记录表处理service
@@ -44,4 +45,12 @@ public interface AgentChatHistoryService extends IService<AgentChatHistoryEntity
      * @param deleteText  是否删除文本
      */
     void deleteByAgentId(String agentId, Boolean deleteAudio, Boolean deleteText);
+
+    /**
+     * 根据智能体ID获取最近50条用户的聊天记录数据
+     *
+     * @param agentId 查询参数，包含agentId、page、limit
+     * @return 聊天记录列表（只有用户）
+     */
+    List<AgentChatHistoryUserVO> getRecentlyFiftyByAgentId(String agentId);
 }

main/manager-api/src/main/java/xiaozhi/modules/agent/service/impl/AgentChatHistoryServiceImpl.java

@@ -5,6 +5,7 @@ import java.util.List;
 import java.util.Map;
 import java.util.stream.Collectors;
 
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
@@ -16,11 +17,13 @@ import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import xiaozhi.common.constant.Constant;
 import xiaozhi.common.page.PageData;
 import xiaozhi.common.utils.ConvertUtils;
+import xiaozhi.modules.agent.Enums.AgentChatHistoryType;
 import xiaozhi.modules.agent.dao.AiAgentChatHistoryDao;
 import xiaozhi.modules.agent.dto.AgentChatHistoryDTO;
 import xiaozhi.modules.agent.dto.AgentChatSessionDTO;
 import xiaozhi.modules.agent.entity.AgentChatHistoryEntity;
 import xiaozhi.modules.agent.service.AgentChatHistoryService;
+import xiaozhi.modules.agent.vo.AgentChatHistoryUserVO;
 
 /**
  * 智能体聊天记录表处理service {@link AgentChatHistoryService} impl
@@ -90,4 +93,21 @@ public class AgentChatHistoryServiceImpl extends ServiceImpl<AiAgentChatHistoryD
         }
 
     }
+
+    @Override
+    public List<AgentChatHistoryUserVO> getRecentlyFiftyByAgentId(String agentId) {
+        // 构建查询条件(不添加按照创建时间排序，数据本来就是主键越大创建时间越大
+        // 不添加这样可以减少排序全部数据在分页的全盘扫描消耗)
+        LambdaQueryWrapper<AgentChatHistoryEntity> wrapper = new LambdaQueryWrapper<>();
+        wrapper.select(AgentChatHistoryEntity::getContent,AgentChatHistoryEntity::getAudioId)
+                .eq(AgentChatHistoryEntity::getAgentId, agentId)
+                .eq(AgentChatHistoryEntity::getChatType, AgentChatHistoryType.USER.getValue());
+
+        // 构建分页查询，查询前50页数据
+        Page<AgentChatHistoryEntity> pageParam = new Page<>(0, 50);
+        IPage<AgentChatHistoryEntity> result = this.baseMapper.selectPage(pageParam, wrapper);
+        return result.getRecords().stream().map( item ->
+               ConvertUtils.sourceToTarget(item,AgentChatHistoryUserVO.class)
+        ).toList();
+    }
 }

main/manager-api/src/main/java/xiaozhi/modules/agent/vo/AgentChatHistoryUserVO.java

@@ -0,0 +1,16 @@
+package xiaozhi.modules.agent.vo;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+
+/**
+ * 智能体用户个人聊天数据的VO
+ */
+@Data
+public class AgentChatHistoryUserVO {
+    @Schema(description = "聊天内容")
+    private String content;
+
+    @Schema(description = "音频ID")
+    private String audioId;
+}