### Do you need to file an issue? - [ ] I have searched the existing issues and this bug is not already filed. - [ ] I believe this is a legitimate bug, not just a question or feature request. ### Describe the bug [Bug]:如果我未进行任何的新增或者删除操作,启动服务后直接删除文件,则json_kv会删不干净,经debug排查是因为json_kv_impl.py中的index_done_callback函数中,self.storage_updated.value第一次永远为False,导致无法进行重写json文件的操作,而在lightrag/kg/nano_vector_db_impl.py的index_done_callback函数中,self.storage_updated.value无论第几次永远都为False ### Steps to reproduce _No response_ ### Expected Behavior _No response_ ### LightRAG Config Used # Paste your config here ### Logs and screenshots _No response_ ### Additional Information - LightRAG Version:不太清楚 - Operating System:Ubuntu20.04 - Python Version:3.10 - Related Issues: