Fix multiple code quality issues identified in review#19

karydenroberts wants to merge 1 commit intoBUPT-GAMMA:mainBUPT-GAMMA/PathRAG:mainfrom

karydenroberts:claude/review-director-01UkUfAaq6znZe1GLiGmx1tikarydenroberts/PathRAG:claude/review-director-01UkUfAaq6znZe1GLiGmx1tiCopy head branch name to clipboard