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>

templates/parts/resource-related.php

@@ -2,9 +2,9 @@
 /**
  * Resource Related
  *
- * 单篇资源页底部「相关资源」：同分类其它资源帖（post + _aksrt_is_resource）。
+ * 单篇资源页底部「相关资源」：同分类其它资源帖（post + _jio_is_resource）。
  *
- * @package AKSRT
+ * @package Jio
  */
 
 defined('ABSPATH') || exit;
@@ -20,14 +20,14 @@ $args = [
 	'posts_per_page' => 6,
 	'post__not_in'   => [$current_id],
 	'category__in'   => array_map('intval', $cat_ids),
-	'meta_key'       => '_aksrt_res_download_count',
+	'meta_key'       => '_jio_res_download_count',
 	'orderby'        => 'meta_value_num',
 	'order'          => 'DESC',
 	'no_found_rows'  => true,
 	'meta_query'     => [
-		function_exists('aksrt_resource_meta_query')
-			? aksrt_resource_meta_query()
-			: ['key' => '_aksrt_is_resource', 'value' => '1', 'compare' => '='],
+		function_exists('jio_resource_meta_query')
+			? jio_resource_meta_query()
+			: ['key' => '_jio_is_resource', 'value' => '1', 'compare' => '='],
 	],
 ];
 
@@ -39,11 +39,11 @@ if (!$query->have_posts()) {
 }
 ?>
 
-<section class="resource-related" aria-label="<?php esc_attr_e('相关资源', 'aksrt'); ?>">
+<section class="resource-related" aria-label="<?php esc_attr_e('相关资源', 'jio'); ?>">
 	<header class="resource-related__header">
-		<h2 class="resource-related__title"><?php esc_html_e('相关资源', 'aksrt'); ?></h2>
+		<h2 class="resource-related__title"><?php esc_html_e('相关资源', 'jio'); ?></h2>
 	</header>
-	<div class="resource-related__grid aksrt-panel">
+	<div class="resource-related__grid jio-panel">
 		<div class="swiper-container swiper-scroll">
 			<div class="swiper-wrapper">
 				<?php
@@ -52,7 +52,7 @@ if (!$query->have_posts()) {
 					$post = get_post();
 					if ($post instanceof WP_Post) {
 						echo '<div class="swiper-slide mr10">' .
-							aksrt_render_graphic_card_post($post) . // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
+							jio_render_graphic_card_post($post) . // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
 							'</div>';
 					}
 				}