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/routes/user-center-auth.js

@@ -25,15 +25,15 @@
 
     var config = configFor(root);
     var template = root.querySelector('[data-auth-modal-template]');
-    var runtime = window.AksrtModalRuntime;
-    if (!template || !runtime || !window.AksrtRequest) return;
+    var runtime = window.JioModalRuntime;
+    if (!template || !runtime || !window.JioRequest) return;
 
     function open() {
       runtime.open({
         html: template.innerHTML,
         height: 320,
         kind: 'identity',
-        className: 'aksrt-identity-modal-shell',
+        className: 'jio-identity-modal-shell',
         mobileBottom: true,
         onContent: function (_, session) {
           var shell = session && session.shell;
@@ -81,11 +81,11 @@
 
           function onModalClose(event) {
             if (!event.detail || event.detail.shell !== shell) return;
-            document.removeEventListener('aksrt:modal:close', onModalClose);
+            document.removeEventListener('jio:modal:close', onModalClose);
             releasePreviewUrls();
           }
 
-          document.addEventListener('aksrt:modal:close', onModalClose);
+          document.addEventListener('jio:modal:close', onModalClose);
           preview.addEventListener('click', function (event) {
             var remove = event.target.closest('[data-auth-remove]');
             if (remove) {
@@ -169,8 +169,8 @@
               button.disabled = true;
               button.innerHTML = '<i class="fa fas fa-spinner fa-spin mr6" aria-hidden="true"></i>正在提交…';
             }
-            toast('正在提交申请…', 'load', '', 'aksrt_identity_submit');
-            window.AksrtRequest.request(config.restBase, {
+            toast('正在提交申请…', 'load', '', 'jio_identity_submit');
+            window.JioRequest.request(config.restBase, {
               method: 'POST',
               credentials: 'same-origin',
               headers: { 'X-WP-Nonce': config.nonce || '' },
@@ -178,7 +178,7 @@
             }).then(function (response) {
               var result = parseResponse(response);
               if (!result || result.success === false) throw new Error((result && result.message) || '申请提交失败，请稍后重试');
-              toast('申请已提交，请耐心等待管理员审核。', 'success', '', 'aksrt_identity_submit');
+              toast('申请已提交，请耐心等待管理员审核。', 'success', '', 'jio_identity_submit');
               var summary = root.querySelector('[data-auth-summary]');
               if (summary) {
                 summary.replaceChildren();
@@ -220,7 +220,7 @@
               }
               if (runtime.getActive && runtime.getActive() === shell) runtime.close('submit');
             }).catch(function (error) {
-              toast(errorMessage(error, '申请提交失败，请稍后重试'), 'danger', '', 'aksrt_identity_submit');
+              toast(errorMessage(error, '申请提交失败，请稍后重试'), 'danger', '', 'jio_identity_submit');
             }).finally(function () {
               if (button) {
                 button.disabled = false;
@@ -240,5 +240,5 @@
     });
   }
 
-  window.AKSRTUserCenterAuth = { init: init };
+  window.JioUserCenterAuth = { init: init };
 })(window, document);