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/user-badge-actions.js

@@ -3,15 +3,15 @@
  *
  * Badge mutations close only the active dialog, matching the reference theme.
  *
- * @package AKSRT
+ * @package Jio
  */
 (function (window, document) {
   'use strict';
 
   var actions = {
-    wear: 'aksrt_user_medal_wear',
-    grant: 'aksrt_user_medal_manually_add',
-    revoke: 'aksrt_user_medal_manually_remove'
+    wear: 'jio_user_medal_wear',
+    grant: 'jio_user_medal_manually_add',
+    revoke: 'jio_user_medal_manually_remove'
   };
 
   function notice(message, type) {
@@ -19,17 +19,17 @@
   }
 
   document.addEventListener('click', function (event) {
-    var button = event.target.closest('[data-aksrt-badge-action]');
+    var button = event.target.closest('[data-jio-badge-action]');
     if (!button || button.classList.contains('is-loading')) return;
 
-    var type = button.getAttribute('data-aksrt-badge-action') || '';
+    var type = button.getAttribute('data-jio-badge-action') || '';
     var action = actions[type];
     var slug = button.getAttribute('data-slug') || '';
-    var nonce = (window.aksrtData && window.aksrtData.nonce) || '';
+    var nonce = (window.jioData && window.jioData.nonce) || '';
     if (!action || !slug || !nonce) return;
 
     event.preventDefault();
-    var modal = button.closest('.aksrt-modal-runtime');
+    var modal = button.closest('.jio-modal-runtime');
     var label = button.innerHTML;
     button.classList.add('is-loading');
     button.setAttribute('aria-busy', 'true');
@@ -52,7 +52,7 @@
     form.set('slug', slug);
     if (type !== 'wear') form.set('id', button.getAttribute('data-user-id') || '0');
 
-    window.fetch((window.aksrtData && window.aksrtData.ajaxUrl) || '/wp-admin/admin-ajax.php', {
+    window.fetch((window.jioData && window.jioData.ajaxUrl) || '/wp-admin/admin-ajax.php', {
       method: 'POST',
       credentials: 'same-origin',
       headers: { 'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8' },
@@ -63,7 +63,7 @@
       if (!json || !json.success) throw new Error((json && json.data && json.data.message) || '操作失败');
       restoreButton();
       notice((json.data && json.data.message) || '操作成功', 'success');
-      if (window.AksrtModalRuntime.getActive() === modal) window.AksrtModalRuntime.close('badge-action');
+      if (window.JioModalRuntime.getActive() === modal) window.JioModalRuntime.close('badge-action');
     }).catch(function (error) {
       restoreButton();
       notice(error.message || '网络错误', 'danger');