debug: add diagnostic logging to verify code version and columns

src/forecasting/chronos_inference.py

@@ -172,6 +172,7 @@ class ChronosInferencePipeline:
 
                 # Get target column name (note: dynamic_forecast renames it to 'target')
                 target_col = 'target'
+                print(f"[DEBUG v1.0.2] Using target_col='{target_col}', columns available: {list(context_data.columns)}", flush=True)
 
                 # Extract context values
                 context = context_data[target_col].values