- Rewrite post_list/comment schema (PHP + JS) with the reference theme's
field set, order, defaults and dependencies; smilie, comment location
and quick-reply fields excluded
- Map PostDisplay::get_comment_display_settings() to the new keys without
legacy fallback: close_comments, comment_paginate_type (ajax_lists),
user_edit_comment master switch, WP comment_order for sorting
- Wire comment_box_hide visibility gate (signin / vip / vip_2 / auth)
- Drop dead comment settings (order/per_page/depth/avatar/hot threshold/
empty text/city), the dead post_close_comments field, and city readers
now fully owned by the IP-geo extension
- Add comment settings reference contract test
