fix(widgets): restore single-card reference UI for search and quote widgets

The 搜索框 and 一言 sidebar widgets fell into the generic renderer branch, so
they rendered a .jio-panel card wrapping a second bespoke card
(.jio-widget-search / .jio-widget-quote). In-article 一言 also used
divergent modifier classes and an extra hover rule.

- search: render through the shared jio_get_search_box() (legacy keyword,
  history and category pickers) inside one reference card, mirroring the
  reference widget's markup and title default 「搜索」
- quote: render the reference .yiyan-box card itself as the click root; the
  shell now emits only the reference widget-container/title wrapper
- article 一言: adopt the reference class lists for header, footer and the
  standalone after-article box; drop the invented yiyan--* modifiers and
  the duplicate hover/opacity rules
- client: fill .cn/.en in the reference order (first line .cn, second .en)
  and drop the stale window.JioYiyan bridge plus the dead qv-yiyan.php AJAX
  path in runtime main.js
- schema: replace the ad-hoc search_style radio with the reference switches
  (keywords, history, input category, more_cats) and default title
- assets: enqueue assets/js/yiyan.js through the quote widget's asset list

Tests: widget-system suite 820/821 (the one failure is the pre-existing
frontend-lifecycle theme-init stub); new search/quote card contracts pass.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

assets/js/runtime/main.js

@@ -4463,41 +4463,7 @@ jQuery(document).ready(function () {
             .delay(1e3, function () {
                 jQuery(this).remove(), jQuery('#qj_dh_css').remove();
             });
-    /*一言功能*/
-    function yiyan_nr(n) {
-        var yylink = _win.uri + '/yiyan/qv-yiyan.php',
-            y_nr;
-        jQuery.ajax({
-            type: 'POST',
-            url: yylink,
-        }).done(function (i) {
-            var lines = i
-                .replace(/\r\n|\r/g, '/&/')
-                .trim()
-                .split('/&/');
-            if (lines) {
-                var type = n.attr('type');
-                if (type) {
-                    y_nr = type === 'en' ? lines[0] : lines[1];
-                } else {
-                    y_nr = '<div class="cn">' + lines[0] + '</div><div class="en">' + lines[1] + '</div>';
-                }
-                n.html(y_nr);
-            }
-        });
-    }
-
-    jQuery('.yiyan').each(function () {
-        yiyan_nr(jQuery(this));
-    }),
-        setInterval(function () {
-            jQuery('.yiyan').each(function () {
-                yiyan_nr(jQuery(this));
-            });
-        }, 3e4);
-    jQuery('.yiyan').on('click', function () {
-        yiyan_nr(jQuery(this));
-    });
+    /*一言功能由 assets/js/yiyan.js 单独负责（[data-jio-yiyan]）*/
 
     /*文章目录由 Jio section-navs 按需入队，legacy 不再重复加载。*/