fix: crash when using online mode with uninitialized jieba (#2663)

Gang Zhuo

2025-09-20 6244b743a70f8ac152e6b8f517669671322da0a8

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<?xml version="1.0" encoding="UTF-8"?>
<Bucket
   uuid = "A434E096-73C6-4C03-86F5-FAA8A72D79B0"
   type = "1"
   version = "2.0">
</Bucket>