The legacy command wrote the caller's unvalidated name into both the
sudoers filename and the rule. Cleanup applied the current lower-case
account pattern to that suffix, so an exact legacy grant for an account
such as Alice was classified as administrator policy, left active, and
the machine-wide migration marker was written anyway.
Match a legacy grant by its exact filename and rule relationship instead
of the account policy, and cover it in the lifecycle suite through both
the unit cleanup and the real migration runner.
The account pattern itself stays lower-case: sudoers reads an upper-case
word such as ALICE as a User_Alias reference, and ALL as every user, so
such names must never reach the generated rule. Pin that with a test.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
