feat(userFirm): 添加所属企业筛选和用户企业关联校验

- 在用户企业管理页面添加所属企业下拉筛选组件，支持搜索和清除
- 调用接口异步加载企业列表填充所属企业筛选项
- 查询参数中新增企业ID支持接口筛选
- 用户企业关联保存时校验手机号对应用户是否存在，若不存在抛出异常
- 检查用户是否已关联企业，避免重复添加企业关系
- 设置用户ID后保存用户企业关联信息

src/main/java/com/zsElectric/boot/business/model/vo/AppletStationPriceListVO.java

@@ -61,6 +61,7 @@ public class AppletStationPriceListVO implements Serializable {
         @Schema(description = "电费（元/度）")
         private BigDecimal elecPrice;
 
+
         @Schema(description = "服务费（元/度）")
         private BigDecimal servicePrice;
 

src/main/java/com/zsElectric/boot/business/service/impl/UserFirmServiceImpl.java

@@ -1,17 +1,21 @@
 package com.zsElectric.boot.business.service.impl;
 
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.zsElectric.boot.business.mapper.UserFirmMapper;
+import com.zsElectric.boot.business.mapper.UserInfoMapper;
 import com.zsElectric.boot.business.service.UserFirmService;
 import com.zsElectric.boot.business.model.entity.UserFirm;
+import com.zsElectric.boot.business.model.entity.UserInfo;
 import com.zsElectric.boot.business.model.form.UserFirmForm;
 import com.zsElectric.boot.business.model.query.UserFirmQuery;
 import com.zsElectric.boot.business.model.vo.UserFirmVO;
 import com.zsElectric.boot.business.converter.UserFirmConverter;
+import com.zsElectric.boot.core.exception.BusinessException;
 
 import java.util.Arrays;
 import java.util.List;
@@ -40,6 +44,7 @@ public class UserFirmServiceImpl extends ServiceImpl<UserFirmMapper, UserFirm> i
 
     private final UserFirmConverter userFirmConverter;
     private final FirmInfoService firmInfoService;
+    private final UserInfoMapper userInfoMapper;
 
     /**
     * 获取企业与用户关系分页列表
@@ -84,6 +89,34 @@ public class UserFirmServiceImpl extends ServiceImpl<UserFirmMapper, UserFirm> i
      */
     @Override
     public boolean saveUserFirm(UserFirmForm formData) {
+        // 通过手机号查询c_user_info表，验证用户是否存在
+        String phone = formData.getPhone();
+        Assert.isTrue(StrUtil.isNotBlank(phone), "手机号不能为空");
+        
+        UserInfo userInfo = userInfoMapper.selectOne(
+                new LambdaQueryWrapper<UserInfo>()
+                        .eq(UserInfo::getPhone, phone)
+                        .eq(UserInfo::getIsDeleted, 0)
+        );
+        
+        if (userInfo == null) {
+            throw new BusinessException("该手机号用户不存在，请先在小程序端注册");
+        }
+        
+        // 检查该用户是否已经关联了企业
+        UserFirm existingUserFirm = this.getOne(
+                new LambdaQueryWrapper<UserFirm>()
+                        .eq(UserFirm::getUserId, userInfo.getId())
+                        .eq(UserFirm::getIsDeleted, 0)
+        );
+        
+        if (existingUserFirm != null) {
+            throw new BusinessException("该用户已经关联了企业，不能重复添加");
+        }
+        
+        // 设置用户ID
+        formData.setUserId(userInfo.getId());
+        
         UserFirm entity = userFirmConverter.toEntity(formData);
         return this.save(entity);
     }