The verb that lists issues/PRs with filters is `list`, but `issues` and
`issue-list` are the names people reach for first — and clap's
"did you mean" tip points at `issue` / `issue-create`, never at `list`.
Two agents independently failed to find it that way.
Add `issues` and `issue-list` as visible clap aliases so the verb is
discoverable under the names people actually type (and they show in
`--help`). No behaviour change; `list` stays canonical.
e6f9679ec9