TASK:新增订阅计划概念

src/main/java/com/ai/da/service/SubscriptionPlanService.java

@@ -0,0 +1,22 @@
+package com.ai.da.service;
+
+import com.ai.da.mapper.primary.entity.SubscriptionPlan;
+import com.ai.da.model.dto.SubscriptionPlanDTO;
+import com.ai.da.model.dto.SubscriptionPlanPageQuery;
+import com.ai.da.model.dto.UpdateSubscriptionPlanDTO;
+import com.ai.da.model.vo.SubscriptionPlanVO;
+import com.baomidou.mybatisplus.core.metadata.IPage;
+import com.baomidou.mybatisplus.extension.service.IService;
+
+public interface SubscriptionPlanService extends IService<SubscriptionPlan> {
+
+    void createPlan(SubscriptionPlanDTO subscriptionPlanDTO);
+
+    void updatePlan(UpdateSubscriptionPlanDTO updateDTO);
+
+    IPage<SubscriptionPlanVO> searchByPage(SubscriptionPlanPageQuery subscriptionPlanPageQuery);
+
+    void deletePlan(Long id);
+
+    void switchSubscriptionPlan(Long subscriptionPlanId, Long adminAccId);
+}