feat(db): add channel event record idempotency table

backend/mci-server/src/main/java/com/sino/mci/channel/entity/ChannelEventRecord.java

@@ -0,0 +1,22 @@
+package com.sino.mci.channel.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Data
+@TableName("mci_channel_event_record")
+public class ChannelEventRecord {
+
+    @TableId(type = IdType.INPUT)
+    private String eventId;
+
+    private String accountId;
+
+    private String eventType;
+
+    private LocalDateTime createTime;
+}

backend/mci-server/src/main/java/com/sino/mci/channel/repository/ChannelEventRecordMapper.java

@@ -0,0 +1,9 @@
+package com.sino.mci.channel.repository;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.sino.mci.channel.entity.ChannelEventRecord;
+import org.apache.ibatis.annotations.Mapper;
+
+@Mapper
+public interface ChannelEventRecordMapper extends BaseMapper<ChannelEventRecord> {
+}

backend/mci-server/src/main/resources/db/migration/V22__add_channel_event_record.sql

@@ -0,0 +1,8 @@
+CREATE TABLE IF NOT EXISTS mci_channel_event_record (
+    event_id VARCHAR(64) PRIMARY KEY,
+    account_id VARCHAR(64) NOT NULL,
+    event_type VARCHAR(32) NOT NULL,
+    create_time DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+
+CREATE INDEX idx_channel_event_account_time ON mci_channel_event_record(account_id, create_time);