Traceback (most recent call last):
  File "/Users/berni/.codex/worktrees/topics-campaign-watch/labs/tools/server-execution-topics/evidence/2026-09-10-incremental-watch/review/verify-manifest-portability.py", line 43, in <module>
    assert portable["checkout"] == "${CHECKOUT}"
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError