fix AI model json

telecom_anomaly/api.py

@@ -273,9 +273,15 @@ def _run_analysis(
 
     return {
         "filename": original_filename,
+        # Full stats whenever ANY detection ran (rules or model). The
+        # stripped `{"total_rows": …}` shape is reserved for the
+        # clustering-only / preview pass, where there are no anomalies
+        # to summarise. Without this, AI-only mode silently dropped
+        # rows_with_anomalies / anomaly_rate / anomaly_types from the
+        # response.
         "statistics": (
             stats.to_dict()
-            if run_anomaly_detection
+            if any_detection
             else {"total_rows": len(detector.data)}
         ),
         "results": response_records,