fix(kb): 当 markitdown 不可用时，回退到纯文本解析器处理 txt/md 文件 | fall back to plain-text parser for txt/md when markitdown is unavailable - #9676

fix(kb): 当 markitdown 不可用时，回退到纯文本解析器处理 txt/md 文件 | fall back to plain-text parser for txt/md when markitdown is unavailable#9676

SweetenedSuzuka wants to merge 3 commits into

AstrBotDevs:masterAstrBotDevs/AstrBot:masterfrom

SweetenedSuzuka:fix/kb-txt-md-parser-fallbackSweetenedSuzuka/AstrBot:fix/kb-txt-md-parser-fallbackCopy head branch name to clipboard