Honor prevnext/authordesc/yiyan settings, multi-tax related queries with
orderby (incl. views), per-post maxheight override, and only expand content
when maxheight is enabled.
Replace the post_list.list admin contract with a dedicated schema module
using Zibll keys (paging_ajax_s, paging_ajax_ias_s, ajax_trigger,
ajax_nomore, list_orderby, post_list_author/time, target_blank). Runtime
derives numbered/load_more/infinite from those keys and applies list
orderby on main queries without legacy dual-write layers.