feat(creator-studio): portal dropdowns, hidden content, two-step block delete

Toolbar
- New ToolMenu renders menus through a portal on body, so they are no longer
  clipped by the horizontally scrolling toolbar and no longer fall back to a
  native <select>. Triggers reuse .jio-creator__tool-btn geometry, fixing the
  heading button's mismatched height/size/position.
- Heading / list / align / quote / hidden-content are all dropdowns.
- Lists: unordered + ordered via InsertOrderedList/InsertUnorderedList.
  The TOC button is removed (it also used the wrong icon).
- Adds left / center / right alignment.
- Adds hidden content: comment / login / VIP / paid, wired to the existing
  [reply], [jio_hide mode="login"], [vip] and [payshow] shortcodes.

Editor content
- Quote blocks now match the live article: full .quote_q structure, four
  colour variables, and an SVG-mask quote mark that does not depend on the
  Font Awesome font being present inside the iframe.
- Block math is centred on a transparent background instead of a full-width
  grey bar.
- Code blocks are plain <pre><code>, identical to the article page; language
  and theme selection is gone and EnlighterJS handles highlighting globally.
  The classic submit editor's code modal follows the same shape.
- Hidden content reuses the .tinymce-hide structure and shows a readable label
  while keeping the shortcode text in the DOM for saving.

Block deletion
- Two-step delete, WPS style: the first click only selects and highlights the
  block, the second click removes it. Clicking elsewhere or Esc cancels.

Contracts updated and extended; 884 widget-system tests pass.

assets/js/front-submit-editor.js

@@ -504,61 +504,6 @@
     editor.nodeChanged();
   }
 
-  var codeLanguages = [
-    ['yaml', 'yaml'],
-    ['xml/html', 'xml'],
-    ['visualbasic', 'visualbasic'],
-    ['vhdl', 'vhdl'],
-    ['typescript', 'typescript'],
-    ['swift', 'swift'],
-    ['sql', 'sql'],
-    ['shell', 'shell'],
-    ['scss/sass', 'scss'],
-    ['rust', 'rust'],
-    ['ruby', 'ruby'],
-    ['python', 'python'],
-    ['powershell', 'powershell'],
-    ['php', 'php'],
-    ['markdown', 'markdown'],
-    ['lua', 'lua'],
-    ['less', 'less'],
-    ['kotlin', 'kotlin'],
-    ['json', 'json'],
-    ['javascript', 'javascript'],
-    ['java', 'java'],
-    ['ini/conf', 'ini'],
-    ['go/golang', 'go'],
-    ['docker', 'dockerfile'],
-    ['diff', 'diff'],
-    ['css', 'css'],
-    ['csharp', 'csharp'],
-    ['Cpp/C++/C', 'cpp'],
-    ['assembly', 'assembly'],
-    [i18n.codeGeneric || '通用高亮', 'generic'],
-  ];
-
-  var codeThemes = [
-    ['enlighter', 'enlighter'],
-    ['classic', 'classic'],
-    ['beyond', 'beyond'],
-    ['mowtwo', 'mowtwo'],
-    ['eclipse', 'eclipse'],
-    ['droide', 'droide'],
-    ['minimal', 'minimal'],
-    ['atomic', 'atomic'],
-    ['dracula', 'dracula'],
-    ['bootstrap4', 'bootstrap4'],
-    ['rowhammer', 'rowhammer'],
-    ['godzilla', 'godzilla'],
-    [i18n.codeFollowGlobal || '跟随全局设置', 'qj'],
-  ];
-
-  function listboxValues(items) {
-    return items.map(function (item) {
-      return { text: item[0], value: item[1] };
-    });
-  }
-
   function bindCharacterCount(editor) {
     var counter = null;
 
@@ -592,40 +537,27 @@
     editor.on('init SetContent input keyup change Undo Redo', updateCount);
   }
 
+  // 代码块：与前台文章页完全一致（pre > code），语言交给「全局功能 → 代码高亮」
+  // 在发布页统一决定，编辑器里不再选语言 / 主题。
   function openCodeModal(editor) {
-    var selected = editor.dom.getParent(editor.selection.getNode(), 'pre.enlighter-pre');
+    var selected = editor.dom.getParent(editor.selection.getNode(), 'pre');
     var code = selected ? selected.querySelector('code') : null;
-    var width = window.innerWidth > 800 ? Math.round(window.innerWidth * 0.5) :
-      (window.innerWidth > 640 ? Math.round(window.innerWidth * 0.7) : window.innerWidth - 20);
     var height = Math.round(window.innerHeight * 0.6);
 
     editor.windowManager.open({
       title: (selected ? (i18n.edit || '编辑') : (i18n.insert || '插入')) +
         (i18n.highlightCode || '高亮代码'),
-      width: width,
+      width: window.innerWidth > 800 ? Math.round(window.innerWidth * 0.5) :
+        (window.innerWidth > 640 ? Math.round(window.innerWidth * 0.7) : window.innerWidth - 20),
       height: height,
       body: [
-        {
-          type: 'listbox',
-          name: 'language',
-          label: i18n.selectLanguage || '选择语言',
-          value: code ? (code.getAttribute('data-enlighter-language') || 'generic') : 'generic',
-          values: listboxValues(codeLanguages),
-        },
-        {
-          type: 'listbox',
-          name: 'theme',
-          label: i18n.codeTheme || '主题',
-          value: code ? (code.getAttribute('data-enlighter-theme') || 'qj') : 'qj',
-          values: listboxValues(codeThemes),
-        },
         {
           type: 'textbox',
           name: 'content',
           label: i18n.codeLabel || '代码：',
           value: code ? (code.textContent || '') : '',
           multiline: true,
-          minHeight: Math.max(160, height - 115),
+          minHeight: Math.max(160, height - 60),
         },
       ],
       onsubmit: function (event) {
@@ -634,12 +566,7 @@
           return;
         }
         var encoded = window.tinymce.html.Entities.encodeAllRaw(content);
-        var language = event.data.language === 'generic' ? '' :
-          ' data-enlighter-language="' + escapeAttr(event.data.language) + '"';
-        var theme = event.data.theme === 'qj' ? '' :
-          ' data-enlighter-theme="' + escapeAttr(event.data.theme) + '"';
-        var markup = '<pre contenteditable="false" class="enlighter-pre"><code class="gl"' +
-          language + theme + '>' + encoded + '</code></pre>';
+        var markup = '<pre><code>' + encoded + '</code></pre>';
         if (selected) {
           editor.dom.setOuterHTML(selected, markup);
         } else {
@@ -846,7 +773,7 @@
         text: '',
         icon: 'code',
         tooltip: i18n.highlightCode || '高亮代码',
-        stateSelector: 'pre.enlighter-pre',
+        stateSelector: 'pre',
         onclick: function () {
           openCodeModal(editor);
         },