fix: msg_stamp.size() is unsigned,should convert to int (#2523)

TouchZZZ

2025-05-22 eccf74684743593950ad259877db7ce9ffc06e93

 .gitignore

@@ -27,3 +27,4 @@
modelscope_models
examples/aishell/llm_asr_nar/*
*egg-info
env/