假人托领取剩余份额 fix

src/main/java/com/tailbet/job/GameJob.java

@@ -229,8 +229,29 @@ public class GameJob {
      * 假人托领取剩余份额（循环领取直到红包领完）
      */
     private void fakeUserReceiveRemaining(RedPacket rp) {
-        List<User> fakes = fakeUserService.getFakeUsers();
+        if (rp.getGroupId() == null) {
+            log.warn("红包未关联群组，托跳过领取: rpId={}", rp.getId());
+            return;
+        }
+
+        // 仅允许群内假人领取，避免跨群领取红包
+        List<Long> groupMemberIds = groupMemberMapper.selectList(
+                        new LambdaQueryWrapper<GroupMember>()
+                                .eq(GroupMember::getGroupId, rp.getGroupId())
+                                .select(GroupMember::getUserId))
+                .stream()
+                .map(GroupMember::getUserId)
+                .collect(Collectors.toList());
+        if (groupMemberIds.isEmpty()) {
+            log.warn("红包所属群组无成员，托跳过领取: rpId={}, groupId={}", rp.getId(), rp.getGroupId());
+            return;
+        }
+
+        List<User> fakes = fakeUserService.getFakeUsers().stream()
+                .filter(fake -> groupMemberIds.contains(fake.getId()))
+                .toList();
         if (fakes.isEmpty()) {
+            log.info("红包所属群组无可用假人，托跳过领取: rpId={}, groupId={}", rp.getId(), rp.getGroupId());
             return;
         }