fix: publish Streamlit anomaly evidence

Author: RuturajM31

reports/tables/anomaly_rule_summary.csv

@@ -0,0 +1,7 @@
+rule_name,flagged_count,flagged_rate
+rule_extreme_total_events,783,0.0099116433327426
+rule_extreme_cart_activity,871,0.011025595584698346
+rule_extreme_product_browsing,763,0.009658472366389023
+rule_extreme_session_span,790,0.010000253170966353
+rule_high_intent_extreme_activity,165,0.002088660472417023
+rule_unusual_cart_to_view_ratio,788,0.009974936074330996

reports/tables/anomaly_segment_summary.csv

@@ -0,0 +1,6 @@
+purchase_intent_segment,visitors,final_anomalies,avg_purchase_intent_score,avg_anomaly_risk_score,avg_total_events,avg_addtocart_count,anomaly_rate
+Cold Visitor,22436,62,0.156654288498356,0.2765226188375782,2.2437154573007665,0.02273132465680157,0.0027634159386699946
+High Intent,179,174,0.9744610003918909,0.9641329262136754,134.43016759776538,12.273743016759777,0.9720670391061452
+Low Intent,45719,571,0.29559171403113277,0.31958805184512784,3.1140007436733086,0.03250289813862945,0.012489337037118048
+Strong Intent,1446,923,0.8652261111004224,0.7819737706649925,18.88243430152144,2.071922544951591,0.6383125864453665
+Warm Intent,9218,1148,0.6360513989450514,0.6433422125492371,6.986439574745064,0.6380993707962682,0.12453894554133217

reports/tables/anomaly_summary.csv

@@ -0,0 +1,7 @@
+metric,value,description
+total_visitors,78998.0,Total visitors analysed.
+final_anomalies,2878.0,Visitors flagged by final anomaly logic.
+final_anomaly_rate,0.036431302058279956,Share of visitors flagged as anomalous.
+isolation_forest_anomalies,1580.0,Visitors flagged by Isolation Forest.
+rule_based_anomalies,2683.0,Visitors flagged by interpretable business rules.
+high_intent_anomalies,174.0,High-intent visitors that also look unusual.