editVillageOwner, renameVillage, editBuildings and editResources are POSTed
to directly, bypassing admin.php's central csrf_verify(). Add csrf_verify()
(after the admin access check, via the shared GameEngine/Admin/csrf.php) and
csrf_field() in their forms (editVillage.tpl, village.tpl, editResources.tpl).
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>