updated visuals

app.py

@@ -98,7 +98,7 @@ def generate_hindcast(days):
     )
 
     # Keep last 7 days
-    df = df.sort_values("date").tail(7)
+    df = df.sort_values("date").tail(days)
 
     # Save plot
     tmp_path = tempfile.NamedTemporaryFile(suffix=".png", delete=False).name