feat(core): 新增VIP到期定时检查任务

# Conflicts:
#	keyboard-server/src/main/java/com/yolo/keyboard/dal/dataobject/aicompanion/AiCompanionI18nDO.java

keyboard-server/src/main/java/com/yolo/keyboard/dal/dataobject/aicompanion/AiCompanionI18nDO.java

@@ -59,5 +59,5 @@ public class AiCompanionI18nDO {
 
     private String prologue;
 
-    private String prologue_audio;
+    private String prologueAudio;
 }

keyboard-server/src/main/java/com/yolo/keyboard/job/VipExpiryCheckJob.java

@@ -0,0 +1,63 @@
+package com.yolo.keyboard.job;
+
+import cn.hutool.core.collection.CollUtil;
+import com.yolo.keyboard.dal.dataobject.user.KeyboardUserDO;
+import com.yolo.keyboard.dal.mysql.user.KeyboardUserMapper;
+import com.yolo.keyboard.framework.mybatis.core.query.LambdaQueryWrapperX;
+import com.yolo.keyboard.framework.quartz.core.handler.JobHandler;
+import com.yolo.keyboard.framework.tenant.core.aop.TenantIgnore;
+import jakarta.annotation.Resource;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Component;
+
+import java.time.LocalDateTime;
+import java.util.List;
+
+/**
+ * VIP 到期检查定时任务
+ * 定期执行，将 VIP 已过期的用户关闭 VIP 权限
+ *
+ * @author ziin
+ */
+@Component
+@Slf4j
+public class VipExpiryCheckJob implements JobHandler {
+
+    @Resource
+    private KeyboardUserMapper userMapper;
+
+    @Override
+    @TenantIgnore
+    public String execute(String param) {
+        log.info("[VipExpiryCheckJob] 开始执行 VIP 到期检查任务");
+
+        LocalDateTime now = LocalDateTime.now();
+
+        // 查询 VIP 已过期且仍处于 VIP 状态的用户
+        List<KeyboardUserDO> expiredUsers = userMapper.selectList(
+                new LambdaQueryWrapperX<KeyboardUserDO>()
+                        .eq(KeyboardUserDO::getIsVip, true)
+                        .le(KeyboardUserDO::getVipExpiry, now)
+        );
+
+        if (CollUtil.isEmpty(expiredUsers)) {
+            log.info("[VipExpiryCheckJob] 没有需要处理的过期 VIP 用户");
+            return "没有需要处理的过期 VIP 用户";
+        }
+
+        int count = 0;
+        for (KeyboardUserDO user : expiredUsers) {
+            user.setIsVip(false);
+            user.setUpdatedAt(now);
+            userMapper.updateById(user);
+            count++;
+
+            log.info("[VipExpiryCheckJob] 用户 {} VIP 已过期，已关闭 VIP 权限，过期时间: {}",
+                    user.getUid(), user.getVipExpiry());
+        }
+
+        String result = String.format("共处理 %d 个过期 VIP 用户", count);
+        log.info("[VipExpiryCheckJob] 任务执行完成: {}", result);
+        return result;
+    }
+}