refactor: rename the theme brand and every identifier from AKSRT to Jio

Full-project rename. `git grep -i aksrt` is now empty apart from the
DBMigrator 3.3.0 changelog note that documents the rename itself.

Code identifiers
- PHP namespace AKSRT\ -> Jio\ (composer PSR-4 + 378 declarations)
- global constants AKSRT_* -> JIO_* (VERSION/DIR/URI, PAY_TYPE_*, CAPTCHA_*)
- procedural functions, hooks, options, meta keys, table names,
  cookies, query vars, ajax actions and nonces: aksrt_ -> jio_
- text domain aksrt -> jio; Theme Name -> Jio
- JS globals: aksrtData/aksrtAdminData/... -> jioData/jioAdminData/...,
  window.AKSRTCaptcha & friends -> window.JioCaptcha, Aksrt* -> Jio*
- Vue components Aks*.vue -> Jio*.vue (15 files renamed + imports)
- CSS classes/data-attrs/custom properties: aksrt- -> jio-
- REST namespace aksrt/v1 -> jio/v1 (incl. payment gateway callbacks)

Storage layer
- DB tables {prefix}aksrt_* -> {prefix}jio_*; SCHEMA_VERSION 3.2.0 -> 3.3.0
  so dbDelta creates the new names on install
- widget id_base aksrt_widget_* -> jio_widget_*
- uninstall.php drop list rebuilt from the actual migrator tables
  (dropped 3 stale entries, added the 17 missing ones)

Removed
- hardcoded https://api.aksrt.com/version.json default update endpoint;
  get_endpoint() now reads the 「更新端点」 setting and do_check() no-ops
  when it is empty

Files renamed: inc/helpers/aksrt-*.php -> jio-*.php (54),
assets/admin/src/components/form/Aks*.vue -> Jio*.vue (15).
Build artifacts regenerated: assets/css/build, assets/js/runtime,
assets/admin/build.

Verified: audit-psr4-paths errors=0, audit-admin-contracts errors=0
(warnings=56, unchanged baseline), 813/813 widget-system tests,
44/44 phpunit, php -l clean across all PHP.

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

assets/js/docs-navigation.js

@@ -1,5 +1,5 @@
 /**
- * AKSRT Docs Navigation
+ * Jio Docs Navigation
  *
  * Enhanced document sidebar navigation:
  * - Collapsible section toggles
@@ -7,7 +7,7 @@
  * - Current section auto-expand
  * - Sidebar search with live filtering
  *
- * @package AKSRT
+ * @package Jio
  */
 
 (function () {
@@ -19,12 +19,12 @@
     items: [],
 
     init: function () {
-      this.sidebar = document.querySelector('.aksrt-doc-sidebar');
-      if (!this.sidebar || this.sidebar.dataset.aksrtDocsNavBound === '1') return;
-      this.sidebar.dataset.aksrtDocsNavBound = '1';
+      this.sidebar = document.querySelector('.jio-doc-sidebar');
+      if (!this.sidebar || this.sidebar.dataset.jioDocsNavBound === '1') return;
+      this.sidebar.dataset.jioDocsNavBound = '1';
 
-      this.items = Array.from(this.sidebar.querySelectorAll('.aksrt-doc-sidebar__item'));
-      this.searchInput = this.sidebar.querySelector('.aksrt-doc-sidebar__search-input');
+      this.items = Array.from(this.sidebar.querySelectorAll('.jio-doc-sidebar__item'));
+      this.searchInput = this.sidebar.querySelector('.jio-doc-sidebar__search-input');
 
       this.initToggle();
       this.initSearch();
@@ -37,17 +37,17 @@
     initToggle: function () {
       var self = this;
       this.sidebar.addEventListener('click', function (e) {
-        var toggle = e.target.closest('.aksrt-doc-sidebar__toggle');
+        var toggle = e.target.closest('.jio-doc-sidebar__toggle');
         if (!toggle) return;
 
         e.preventDefault();
-        var link = toggle.closest('.aksrt-doc-sidebar__link');
+        var link = toggle.closest('.jio-doc-sidebar__link');
         if (!link) return;
 
-        var li = link.closest('.aksrt-doc-sidebar__item');
+        var li = link.closest('.jio-doc-sidebar__item');
         if (!li) return;
 
-        var sub = li.querySelector('.aksrt-doc-sidebar__sub, ul');
+        var sub = li.querySelector('.jio-doc-sidebar__sub, ul');
         if (!sub) return;
 
         var isOpen = li.classList.contains('is-open');
@@ -62,15 +62,15 @@
       });
 
       // Auto-expand current path
-      var currentItems = this.sidebar.querySelectorAll('.aksrt-doc-sidebar__item.is-current, .aksrt-doc-sidebar__item.is-ancestor');
+      var currentItems = this.sidebar.querySelectorAll('.jio-doc-sidebar__item.is-current, .jio-doc-sidebar__item.is-ancestor');
       currentItems.forEach(function (item) {
         item.classList.add('is-open');
-        var toggle = item.querySelector('.aksrt-doc-sidebar__toggle');
+        var toggle = item.querySelector('.jio-doc-sidebar__toggle');
         if (toggle) {
           toggle.classList.remove('fa-chevron-right');
           toggle.classList.add('fa-chevron-down');
         }
-        var sub = item.querySelector('.aksrt-doc-sidebar__sub, ul');
+        var sub = item.querySelector('.jio-doc-sidebar__sub, ul');
         if (sub) sub.style.display = '';
       });
     },
@@ -93,7 +93,7 @@
 
     filterItems: function (query) {
       this.items.forEach(function (item) {
-        var link = item.querySelector('.aksrt-doc-sidebar__link');
+        var link = item.querySelector('.jio-doc-sidebar__link');
         var text = link ? link.textContent.toLowerCase() : '';
         if (query === '' || text.indexOf(query) >= 0) {
           item.style.display = '';
@@ -111,9 +111,9 @@
         if (!['ArrowUp', 'ArrowDown', 'Enter', ' '].includes(e.key)) return;
 
         var focused = document.activeElement;
-        if (!focused || !focused.closest('.aksrt-doc-sidebar')) return;
+        if (!focused || !focused.closest('.jio-doc-sidebar')) return;
 
-        var links = Array.from(document.querySelectorAll('.aksrt-doc-sidebar__link'));
+        var links = Array.from(document.querySelectorAll('.jio-doc-sidebar__link'));
         var idx = links.indexOf(focused);
 
         if (e.key === 'ArrowDown') {
@@ -130,5 +130,5 @@
     },
   };
 
-  jQuery(document).off('auto_fun.aksrt-docs-navigation').on('auto_fun.aksrt-docs-navigation', function () { DocsNav.init(); });
+  jQuery(document).off('auto_fun.jio-docs-navigation').on('auto_fun.jio-docs-navigation', function () { DocsNav.init(); });
 })();