feat(favorites): 支持设备批量取消收藏

fruitshorts-module-playback/src/main/java/com/fruitshorts/playback/service/FavoriteService.java

@@ -206,19 +206,39 @@ public class FavoriteService {
     }
 
     @Transactional(rollbackFor = Exception.class)
-    public void removeBatch(Long userId, List<Long> dramaIds) {
+    public int removeBatch(Long userId, List<Long> dramaIds) {
+        return removeBatchInternal(new InteractionIdentity(userId, ""), dramaIds);
+    }
+
+    /** 登录账号或匿名设备在同一事务内批量取消收藏。 */
+    @Transactional(rollbackFor = Exception.class)
+    public int removeBatch(InteractionIdentity identity, List<Long> dramaIds) {
+        return removeBatchInternal(identity, dramaIds);
+    }
+
+    private int removeBatchInternal(
+            InteractionIdentity identity, List<Long> dramaIds) {
         if (dramaIds == null || dramaIds.isEmpty()) {
-            return;
+            return 0;
         }
+        Set<Long> normalized = new HashSet<>();
         for (Long dramaId : dramaIds) {
             if (dramaId == null) {
                 continue;
             }
-            int removed = favoriteMapper.physicalDelete(userId, dramaId);
+            normalized.add(dramaId);
+        }
+        int deleted = 0;
+        for (Long dramaId : normalized) {
+            int removed = identity.authenticated()
+                    ? favoriteMapper.physicalDelete(identity.userId(), dramaId)
+                    : favoriteMapper.physicalDeleteDevice(identity.deviceId(), dramaId);
             if (removed > 0) {
                 dramaService.adjustFavoriteCount(dramaId, -1);
+                deleted += removed;
             }
         }
+        return deleted;
     }
 
     /** 查询用户对某部剧最近一次收藏时间。 */

fruitshorts-module-playback/src/main/java/com/fruitshorts/playback/vo/FavoriteRemoveReqVO.java

@@ -4,6 +4,7 @@ package com.fruitshorts.playback.vo;
 
 import jakarta.validation.constraints.NotEmpty;
 import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Size;
 import java.util.List;
 import lombok.Data;
 
@@ -11,6 +12,10 @@ import lombok.Data;
 @Data
 public class FavoriteRemoveReqVO {
 
-    @NotEmpty(message = "缺少 dramaIds")
+    @NotEmpty(message = "dramaIds 不能为空")
+    @Size(max = 200, message = "dramaIds 最多 200 条")
     private List<@NotNull Long> dramaIds;
+
+    /** 未登录且未携带 X-Device-Id 时的兜底设备号。 */
+    private String deviceId;
 }