main主干首次提交，包含用户认证模块

src/main/java/com/labelsys/backend/mapper/SysCompanyMapper.java

@@ -0,0 +1,24 @@
+package com.labelsys.backend.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.labelsys.backend.entity.SysCompany;
+import com.labelsys.backend.enums.CompanyStatus;
+import java.util.List;
+import org.apache.ibatis.annotations.Param;
+
+public interface SysCompanyMapper extends BaseMapper<SysCompany> {
+
+    int insert(SysCompany company);
+
+    SysCompany findById(@Param("id") Long id);
+
+    SysCompany findByCompanyCode(@Param("companyCode") String companyCode);
+
+    List<SysCompany> findEnabledCompaniesByPhone(@Param("phone") String phone);
+
+    List<SysCompany> listAll();
+
+    int updateStatus(@Param("id") Long id, @Param("status") CompanyStatus status);
+
+    void deleteAll();
+}