Two changes that together restore the per-row Edit / Delete menu
for non-admin users:
- ``templateActions`` drops the blanket ``access: 'canSeeAdmin'``
gate on every menu item. With the gate on, non-admin callers got
an empty filtered menu, so clicking the "..." did nothing.
- The management page passes ``mine=true`` to the list API. The
endpoint now drops Global rows for non-admin callers (rows they
can't edit anyway), so the dropdown shows up only on rows the
caller may manage. The GPU-instance create picker reuses the
same API without ``mine``, keeping Global presets visible there.
