Update app.py

app.py

@@ -84,8 +84,9 @@ def run_agent(_):
        - Correlation analysis
        - 3+ visualizations
     4. Extract 3+ bullet-point insights.
-    5. Ensure all figures are saved to ./figures/ directory (create it if needed).
-       Use at least 8x6 inches at 150+ dpi.
+    5. Before saving visualizations, run:
+       import os; os.makedirs("figures", exist_ok=True)
+       Then save all figures using plt.savefig("./figures/...")
     6. Return a JSON with:
        - 'insights': list of insights
        - 'figures': list of figure file paths