app.py: xplicitly checks for the DASHBOARD_FROM_RESULTS_DIR environment variable when from_results_dir is None, ensuring the correct directory is used even if Click's auto_envvar_prefix mechanism isn't working as expected.

dashboard/app.py

@@ -216,6 +216,11 @@ def run(from_results_dir, datasource, port):
 @click.option('--datasource', default='file://benchmarks.parquet', help='Load a Parquet file already generated')
 @click.option('--port', default=7860, help='Port to run the dashboard')
 def main(from_results_dir, datasource, port):
+    # Explicitly check for environment variable if from_results_dir is None
+    if from_results_dir is None and 'DASHBOARD_FROM_RESULTS_DIR' in os.environ:
+        from_results_dir = os.environ.get('DASHBOARD_FROM_RESULTS_DIR')
+        print(f"Using environment variable: DASHBOARD_FROM_RESULTS_DIR={from_results_dir}")
+
     run(from_results_dir, datasource, port)