Patch authored by windows-codex and handed off through the coordination
layer itself: correlation_id task_logstream_e2e_dogfood, patch artifact
art_20260702T041319_cdf92e302efe (sha256 a17012d6...9f64c4, verified),
test log artifact art_20260702T041254_c46525e2d550 (72 passed on
Windows 11, Python 3.12.11). Applied on mac, re-verified (72 passed),
acked applied. Trailing-newline nit in the submitted diff repaired on
apply (producer stripped the final newline when storing the artifact).
(cherry picked from commit 38f3d35804155840cd5512411e9823fb38dc7e95)
a9f19a2f7b