Fix expected_loss.txt (was incorrectly saved as 0.720237, should be 0.613389)

Author: ryan-williams

.github/workflows/gpu-e2e.yml

@@ -61,7 +61,7 @@ jobs:
 
       - name: Run e2e training test (CPU baseline)
         run: |
-          # Also run CPU test to verify determinism
+          # Run CPU test to verify determinism
           uv run python tests/e2e_train.py --epochs 5
 
       - name: Show GPU memory usage

tests/expected_loss.txt

@@ -1 +1 @@
-0.720237
+0.613389