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/front-submit-pay-download.js

@@ -1,7 +1,7 @@
 /**
  * Reference-style paid download resource editor for the front submit page.
  *
- * @package AKSRT
+ * @package Jio
  */
 (function () {
   'use strict';
@@ -78,21 +78,21 @@
     }
 
     root.setAttribute('data-pay-download-ready', '1');
-    var cfg = window.aksrtSubmitData || {};
+    var cfg = window.jioSubmitData || {};
     var i18n = cfg.i18n || {};
     var activeItem = null;
     var previousFocus = null;
     var modal = document.createElement('div');
-    modal.className = 'aksrt-editor-media pay-dawnload-edit-modal';
+    modal.className = 'jio-editor-media pay-dawnload-edit-modal';
     modal.hidden = true;
     modal.innerHTML =
-      '<button type="button" class="aksrt-editor-media__backdrop" data-pay-download-close tabindex="-1" aria-label="' +
+      '<button type="button" class="jio-editor-media__backdrop" data-pay-download-close tabindex="-1" aria-label="' +
         escapeHtml(i18n.close || '关闭') + '"></button>' +
-      '<div class="aksrt-editor-media__dialog" role="dialog" aria-modal="true" aria-labelledby="aksrt-pay-download-title" tabindex="-1">' +
-        '<button type="button" class="aksrt-editor-media__close" data-pay-download-close aria-label="' +
+      '<div class="jio-editor-media__dialog" role="dialog" aria-modal="true" aria-labelledby="jio-pay-download-title" tabindex="-1">' +
+        '<button type="button" class="jio-editor-media__close" data-pay-download-close aria-label="' +
           escapeHtml(i18n.close || '关闭') + '">&times;</button>' +
         '<div class="pay-dawnload-edit-content">' +
-          '<div class="mb20"><b class="modal-title flex ac"><span class="toggle-radius mr10 b-theme"><i class="fa fas fa-download" aria-hidden="true"></i></span><span id="aksrt-pay-download-title" data-pay-download-title></span></b></div>' +
+          '<div class="mb20"><b class="modal-title flex ac"><span class="toggle-radius mr10 b-theme"><i class="fa fas fa-download" aria-hidden="true"></i></span><span id="jio-pay-download-title" data-pay-download-title></span></b></div>' +
           '<div class="mini-scrollbar scroll-y max-vh7 pay-dawnload-edit-fields">' +
             '<div class="mb20"><div class="muted-color mb6">' + escapeHtml(i18n.downloadUrl || '下载地址') + '</div>' +
               '<div class="flex ac pay-dawnload-url-row"><input type="url" class="form-control" data-pay-resource-field="url" placeholder="' + escapeHtml(i18n.enterDownloadUrl || '请输入资源下载地址') + '">' +
@@ -116,7 +116,7 @@
       '</div>';
     document.body.appendChild(modal);
 
-    var dialog = modal.querySelector('.aksrt-editor-media__dialog');
+    var dialog = modal.querySelector('.jio-editor-media__dialog');
     var title = modal.querySelector('[data-pay-download-title]');
     var actions = modal.querySelector('[data-pay-download-actions]');
     var uploadButton = modal.querySelector('[data-pay-resource-upload]');
@@ -151,7 +151,7 @@
       list.querySelectorAll('[data-pay-download-item]').forEach(function (item, index) {
         item.querySelectorAll('[data-pay-download-field]').forEach(function (input) {
           var field = input.getAttribute('data-pay-download-field');
-          input.name = 'aksrt_pay[downloads][' + index + '][' + field + ']';
+          input.name = 'jio_pay[downloads][' + index + '][' + field + ']';
         });
       });
     }
@@ -169,7 +169,7 @@
 
     function closeModal() {
       modal.hidden = true;
-      document.body.classList.remove('aksrt-editor-media-open');
+      document.body.classList.remove('jio-editor-media-open');
       if (previousFocus && typeof previousFocus.focus === 'function') {
         previousFocus.focus();
       }
@@ -186,7 +186,7 @@
       setButtonClass(inputMap.class.value);
       syncActions();
       modal.hidden = false;
-      document.body.classList.add('aksrt-editor-media-open');
+      document.body.classList.add('jio-editor-media-open');
       dialog.focus();
     }
 
@@ -268,14 +268,14 @@
       syncActions();
     });
 
-    var canUseMediaPicker = !!(window.AksrtSubmitMedia && typeof window.AksrtSubmitMedia.open === 'function');
+    var canUseMediaPicker = !!(window.JioSubmitMedia && typeof window.JioSubmitMedia.open === 'function');
     uploadButton.hidden = false;
     uploadButton.addEventListener('click', function () {
       if (!canUseMediaPicker) {
         notify(i18n.mediaPickerUnavailable || '媒体选择器加载失败，请刷新页面后重试', 'danger');
         return;
       }
-      window.AksrtSubmitMedia.open({
+      window.JioSubmitMedia.open({
         type: 'file',
         multiple: false,
         allowExternal: false,
@@ -284,7 +284,7 @@
           inputMap.url.value = item.url || '';
           inputMap.attachment_id.value = String(item.attachment_id || item.id || 0);
           syncActions();
-          notify(i18n.uploaded || '附件上传成功', 'success', 5, 'aksrt-front-submit-resource-upload-toast');
+          notify(i18n.uploaded || '附件上传成功', 'success', 5, 'jio-front-submit-resource-upload-toast');
         },
       });
     });
@@ -297,5 +297,5 @@
     reindex();
   }
 
-  window.aksrtSubmitPayDownloads = { init: init };
+  window.jioSubmitPayDownloads = { init: init };
 })();