feat(tenant): 实现多租户功能支持

src/main/java/com/youlai/boot/system/mapper/TenantMapper.java

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+package com.youlai.boot.system.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.youlai.boot.system.model.entity.Tenant;
+import org.apache.ibatis.annotations.Mapper;
+
+/**
+ * 租户 Mapper
+ *
+ * @author Ray.Hao
+ * @since 3.0.0
+ */
+@Mapper
+public interface TenantMapper extends BaseMapper<Tenant> {
+}
+

src/main/java/com/youlai/boot/system/mapper/UserTenantMapper.java

@@ -0,0 +1,16 @@
+package com.youlai.boot.system.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.youlai.boot.system.model.entity.UserTenant;
+import org.apache.ibatis.annotations.Mapper;
+
+/**
+ * 用户租户关联 Mapper
+ *
+ * @author Ray.Hao
+ * @since 3.0.0
+ */
+@Mapper
+public interface UserTenantMapper extends BaseMapper<UserTenant> {
+}
+