feat(widgets): replicate 12 reference widgets for full Zibll parity

- rewrite schemas for posts, tab_posts, oneline_posts, hot_posts,
  term_cards, term_aggregation, media_cards, combo_info, partners,
  recent_comments, posts_toc and slider_media_combo to mirror the
  modern reference modules field by field (options, defaults,
  dependencies, min/max/step, subheadings)
- port reference renderers: hot ranking with TOP badges, category
  aggregation card, graphic cover cards, partners CSS marquee,
  combo info cards with auto band palette, recent comment list
- rename 分类与标签聚合卡片 to 分类聚合卡片 and restrict it to
  categories (no tags/topics branch in this project)
- drop topics filter fields and the topics query branch; align
  orderby value domain with supported post meta
- add searchable sortable terms admin field type and spinner unit
  suffix rendering
- unify widget pagination and lazy loading on the REST client with
  the runtime-owned ias reveal trigger; remove the legacy
  post_ajax_trigger dual path
- align section-navs TOC with the reference contract (wznav ids,
  3-heading minimum, zib-widget box)

assets/js/section-navs.js

@@ -9,7 +9,7 @@
   'use strict';
 
   var HEADING_SEL = 'h1, h2, h3, h4';
-  var MIN_HEADINGS = 2;
+  var MIN_HEADINGS = 3;
   var NAVBOX = '.posts-nav-box';
   var NAV_CLASS = 'posts-nav-lists';
 
@@ -19,7 +19,7 @@
 
   function ensureId(el, index) {
     if (!el.id) {
-      el.id = 'section-nav-' + index;
+      el.id = 'wznav_' + index;
     }
     return el.id;
   }
@@ -54,7 +54,7 @@
       box.insertAdjacentHTML(
         'beforeend',
         titleHtml +
-          '<div class="aksrt-panel"><div class="' +
+          '<div class="zib-widget"><div class="' +
           NAV_CLASS +
           ' scroll-y mini-scrollbar list-unstyled">' +
           listsHtml +