The 'resolved' state was a dead-end — no way to change your mind after
clicking approve/deny, and no way to re-action a needs_info appeal once
the submitter replied. Action controls now show on every row regardless
of status, and resolved rows get a Reopen button that moves the appeal
back to pending.
Backend action handler already overwrites status unconditionally, so
this is purely removing a view-layer gate plus adding /:id/reopen as
a thin wrapper over the shared actionAppeal helper.
Chronicler #81
b156c0b63f