Expand sudoers User_Alias chains so aliases, wildcards, netgroups, and
undefined names cannot smuggle authority to the Hermes account, and
require polkit grants to scope through exact literal identity
comparisons: computed strings, bracket lookups, subject aliasing,
operator-built values, and unconditional or wildcard grants fail closed.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
