feat: 新增智能柜详情接口及MQTT连接复用逻辑

- 新增智能柜详情接口，支持通过ID获取智能柜详细信息
- 添加MQTT连接复用逻辑，避免重复创建相同连接的客户端实例
- 新增CabinetTemplateEnum枚举类，定义智能柜模板类型

agileboot-admin/src/main/java/com/agileboot/admin/controller/cabinet/SmartCabinetController.java

@@ -5,6 +5,7 @@ import com.agileboot.common.core.base.BaseController;
 import com.agileboot.common.core.dto.ResponseDTO;
 import com.agileboot.common.core.page.PageDTO;
 import com.agileboot.common.enums.common.BusinessTypeEnum;
+import com.agileboot.domain.ab98.user.dto.Ab98UserDetailDTO;
 import com.agileboot.domain.cabinet.cell.CabinetCellApplicationService;
 import com.agileboot.domain.cabinet.cell.dto.CabinetCellDTO;
 import com.agileboot.domain.cabinet.smartCabinet.dto.AllCabinetDataDTO;
@@ -46,6 +47,13 @@ public class SmartCabinetController extends BaseController {
         return ResponseDTO.ok(page);
     }
 
+    @Operation(summary = "智能柜详情")
+    @GetMapping("/detail/{cabinetId}")
+    public ResponseDTO<SmartCabinetDTO> detail(@PathVariable Long cabinetId) {
+        SmartCabinetDTO smartCabinetDTO = smartCabinetApplicationService.getSmartCabinetById(cabinetId);
+        return ResponseDTO.ok(smartCabinetDTO);
+    }
+
     @Operation(summary = "新增智能柜")
     @AccessLog(title = "智能柜管理", businessType = BusinessTypeEnum.ADD)
     @PostMapping

agileboot-domain/src/main/java/com/agileboot/domain/cabinet/smartCabinet/CabinetTemplateEnum.java

@@ -0,0 +1,34 @@
+package com.agileboot.domain.cabinet.smartCabinet;
+
+public enum CabinetTemplateEnum {
+    CABINET_16(1, "cabinet_16.jpg", "16口机柜"),
+    CABINET_20(2, "cabinet_20.jpg", "20口机柜"),
+    CABINET_22(3, "cabinet_22.jpg", "22口机柜"),
+    CABINET_24(4, "cabinet_24.jpg", "24口机柜"),
+    CABINET_40(5, "cabinet_40.jpg", "40口机柜"),
+    CABINET_48(6, "cabinet_48.jpg", "48口机柜"),
+    CABINET_60(7, "cabinet_60.jpg", "60口机柜"),
+    CABINET_120(8, "cabinet_120.jpg", "120口机柜");
+
+    private final int code;
+    private final String img;
+    private final String name;
+
+    CabinetTemplateEnum(int code, String img, String name) {
+        this.code = code;
+        this.img = img;
+        this.name = name;
+    }
+
+    public int getCode() {
+        return code;
+    }
+
+    public String getImg() {
+        return img;
+    }
+
+    public String getName() {
+        return name;
+    }
+}

agileboot-domain/src/main/java/com/agileboot/domain/cabinet/smartCabinet/SmartCabinetApplicationService.java

@@ -53,6 +53,26 @@ public class SmartCabinetApplicationService {
         return new PageDTO<>(dtoList, page.getTotal());
     }
 
+    public SmartCabinetDTO getSmartCabinetById(Long cabinetId) {
+        SmartCabinetEntity cabinet = smartCabinetService.getById(cabinetId);
+        SmartCabinetDTO dto = new SmartCabinetDTO(cabinet);
+
+        List<ShopEntity> shopEntities = shopService.selectAll();
+        dto.setShopName(
+            shopEntities.stream()
+            .filter(shop -> shop.getShopId().equals(dto.getShopId()))
+            .findFirst()
+            .map(ShopEntity::getShopName)
+            .orElse("")
+        );
+
+        SmartCabinetEntity mainCabinet = smartCabinetService.getByCabinetId(cabinet.getMainCabinet());
+        if (mainCabinet!= null) {
+            dto.setMainCabinetName(mainCabinet.getCabinetName());
+        }
+        return dto;
+    }
+
     public void addSmartCabinet(AddSmartCabinetCommand command) {
         SmartCabinetModel model = smartCabinetModelFactory.create();
         model.loadAddCommand(command);

agileboot-domain/src/main/java/com/agileboot/domain/mqtt/MqttService.java

@@ -25,6 +25,12 @@ public class MqttService implements MqttCallback {
     private static class ClientConfig {
         private final MqttClient client;
         private final MqttServerEntity config;
+        
+        public boolean isSameConnection(MqttServerEntity other) {
+            return config.getServerUrl().equals(other.getServerUrl()) 
+                && config.getUsername().equals(other.getUsername())
+                && config.getPassword().equals(other.getPassword());
+        }
     }
 
 
@@ -51,6 +57,18 @@ public class MqttService implements MqttCallback {
 
     public void connect() throws MqttException {
         for (MqttServerEntity config : mqttServerService.selectAll()) {
+            // 检查是否已有相同连接的client实例
+            ClientConfig existingConfig = clientConfigs.stream()
+                .filter(cc -> cc.isSameConnection(config))
+                .findFirst()
+                .orElse(null);
+                
+            if (existingConfig != null) {
+                log.info("复用已有MQTT连接：{} 账号：{}", config.getServerUrl(), config.getUsername());
+                clientConfigs.add(new ClientConfig(existingConfig.client, config));
+                continue;
+            }
+            
             MqttClient client = new MqttClient(config.getServerUrl(), MqttClient.generateClientId(), new MemoryPersistence());
             MqttConnectOptions options = new MqttConnectOptions();
             options.setUserName(config.getUsername());