script/install replaced any tracked script/install or
script/update-policy in the target, including a repo's own unrelated
script. It now stops when such a file has a line the canonical file
has never held. An older shared copy is still replaced.
The padded file in the self-replacement test is now an earlier
canonical version, so the new stop does not catch it.
Model: opus-5-5
script/install fetches the policy files from prompts over HTTP and
writes them into a repo, installing itself and script/update-policy
there. script/update-policy fetches the current script/install, runs
it on its own repo and commits without pushing. The file list and the
rules for keeping a repo's own entries move to script/install.
Model: opus-5-5