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>

tests/widget-system/message-admin-harness.php

@@ -1,11 +1,11 @@
 <?php
 /** WordPress-free message admin render / handler / SQL harness. No actual notifications are sent. */
-namespace AKSRT\Core {
+namespace Jio\Core {
     final class DBMigrator {
-        public static function table($key) { return 'wp_aksrt_' . $key; }
+        public static function table($key) { return 'wp_jio_' . $key; }
     }
 }
-namespace AKSRT\Messages {
+namespace Jio\Messages {
     final class Message {
         public static $sent = [];
         public static function get_instance() { return new self(); }
@@ -19,8 +19,8 @@ namespace {
     define('ABSPATH', __DIR__);
     define('ARRAY_A', 'ARRAY_A');
     $root = dirname(__DIR__, 2);
-    define('AKSRT_DIR', $root);
-    define('AKSRT_URI', 'https://example.test/theme');
+    define('JIO_DIR', $root);
+    define('JIO_URI', 'https://example.test/theme');
     class WP_Error {
         public function __construct(public $code, public $message) {}
         public function get_error_message() { return $this->message; }
@@ -97,7 +97,7 @@ namespace {
     require $root . '/src/Admin/Native/UsersMenusMessagesCompose.php';
     require $root . '/src/Admin/Native/UsersMenusMessages.php';
     class Probe {
-        use \AKSRT\Admin\Native\UsersMenusMessages;
+        use \Jio\Admin\Native\UsersMenusMessages;
         public $cap_checked = 0;
         private function ensure_cap(): void { $this->cap_checked++; }
         public function invoke($method, ...$args) { return $this->$method(...$args); }
@@ -122,18 +122,18 @@ namespace {
     $out['cache_calls'] = $GLOBALS['cache_calls'];
     $out['asset_table'] = $probe->html('render_message_table', [array_merge($row, ['type' => 'asset_balance_increase'])], $filters, 1, false);
     foreach (['asset_balance_increase', 'asset_balance_decrease', 'asset_points_increase', 'asset_points_decrease'] as $type) {
-        $out['asset_types'][$type] = [\AKSRT\Messages\MessageTypes::label($type), \AKSRT\Messages\MessageTypes::tone($type)];
+        $out['asset_types'][$type] = [\Jio\Messages\MessageTypes::label($type), \Jio\Messages\MessageTypes::tone($type)];
     }
 
     $wpdb->prepared = [];
-    \AKSRT\Messages\NotificationAdminQuery::paginate($out['query_filters'], 1);
-    \AKSRT\Messages\NotificationAdminQuery::status_counts($out['query_filters']);
-    \AKSRT\Messages\NotificationAdminQuery::overview();
+    \Jio\Messages\NotificationAdminQuery::paginate($out['query_filters'], 1);
+    \Jio\Messages\NotificationAdminQuery::status_counts($out['query_filters']);
+    \Jio\Messages\NotificationAdminQuery::overview();
     $out['sql'] = $wpdb->prepared;
     $GLOBALS['zone'] = 'America/New_York';
     $GLOBALS['now'] = '2026-11-01 12:00:00';
     $wpdb->prepared = [];
-    \AKSRT\Messages\NotificationAdminQuery::overview();
+    \Jio\Messages\NotificationAdminQuery::overview();
     $out['dst_sql'] = $wpdb->prepared;
 
     $base = ['recipient_mode' => 'role', 'role' => 'subscriber', 'content' => 'Hello', 'title' => 'Title'];
@@ -149,10 +149,10 @@ namespace {
     foreach ($cases as $name => $post) {
         $_POST = $post;
         $GLOBALS['role_count'] = $name === 'too_large' ? 501 : 3;
-        \AKSRT\Messages\Message::$sent = [];
+        \Jio\Messages\Message::$sent = [];
         try { $probe->handle_send_message(); } catch (Redirect $redirect) {
             parse_str(parse_url($redirect->getMessage(), PHP_URL_QUERY), $query);
-            $out['send'][$name] = ['redirect' => $query, 'sent' => count(\AKSRT\Messages\Message::$sent)];
+            $out['send'][$name] = ['redirect' => $query, 'sent' => count(\Jio\Messages\Message::$sent)];
         }
     }
     $_POST = ['bulk_action' => 'delete', 'message_id' => 8, 'ids' => [9, 10], 'period' => 'today', 'status' => 'unread', 'paged' => 3];