OpenViking v0.4.14 使用未锁定版本的 xxhash 依赖。全新安装或更新依赖时，如果安装到 xxhash 4.x，本地 VectorDB 和 cuVS 后端可能无法写入新生成的向量。
该异常在写入链路中没有正确返回给用户，可能表现为任务已经完成、原始内容也已保存，但对应向量实际没有落库，导致后续检索或自动召回找不到相关内容。
如果受影响期间已经出现内容无法召回的情况，需要重新触发对应内容的向量构建。
修复详情：PR #3995
OpenViking v0.4.14 declared an unbounded xxhash dependency. A fresh installation or dependency update could therefore install xxhash 4.x, causing newly generated vectors to fail to persist when using the local VectorDB or cuVS backend.
The error was not correctly propagated through the write pipeline. As a result, a task could appear to complete and the source content could remain available, while its vector was never stored. Subsequent vector searches or automatic recall could then miss that content.