Day 9 (04:00): session wrap-up

Author: Test User

src/backend/performance_baseline.json

@@ -1,10 +1,10 @@
 {
-  "upload_1000_rows_ms": 96.2,
-  "correlations_ms": 1.6,
-  "train_linear_regression_ms": 113.1,
-  "single_prediction_ms": 27.3,
-  "upload_200_rows_ms": 85.7,
-  "profile_cached_ms": 1.3,
-  "feature_suggestions_ms": 3.7,
-  "recommendations_ms": 2.0
+  "upload_1000_rows_ms": 47.0,
+  "correlations_ms": 1.4,
+  "train_linear_regression_ms": 365.1,
+  "single_prediction_ms": 13.0,
+  "upload_200_rows_ms": 48.1,
+  "profile_cached_ms": 1.0,
+  "feature_suggestions_ms": 4.2,
+  "recommendations_ms": 2.2
 }