yuliang_guo c3aa4e85e7 feat: 添加PPT/PPTX文件类型支持 ...

1. upload.py: 添加ppt/pptx到允许上传的文件类型
2. knowledge_analysis_v2.py: 添加PPT内容提取方法_extract_ppt_content
3. requirements.txt: 添加python-pptx依赖

2026-01-31 11:49:10 +08:00

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