Cannot Generate Violin Plots for Data Visualization from Uploaded Datasets

Problem Description
The current data-analysis agent does not support the creation of violin plots from uploaded CSV or Excel datasets. This limits the agent's effectiveness in providing comprehensive data visualization for data analysts.

Why This Matters
Violin plots are critical for in-depth data analysis as they show the distribution and density of data for various categories, offering more insight than standard box plots. Their absence hinders a full understanding of data shape, skewness, and multimodality, which are vital for thorough exploratory data analysis (EDA) and effective communication of insights.

データ分析エージェントのエントリポイントとCSV/Excelアップロードパスを特定してください。ファイル名やテストは提供されていません。アップロードしたデータセットで既存のワークフローを実行し、violin-plotの生成に成功することを完了チェックとして使用してください。