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/user-shared-helpers.php

@@ -4,12 +4,12 @@
  *
  * 分页渲染和空状态卡片，供本人中心和公开主页共用。
  *
- * @package AKSRT
+ * @package Jio
  */
 
 defined('ABSPATH') || exit;
 
-if (!function_exists('aksrt_render_profile_pagination')) {
+if (!function_exists('jio_render_profile_pagination')) {
     /**
      * 渲染分页
      *
@@ -17,7 +17,7 @@ if (!function_exists('aksrt_render_profile_pagination')) {
      * @param int    $current     当前页
      * @param string $param       URL 参数名
      */
-    function aksrt_render_profile_pagination($total_pages, $current, $param, $base_url = '') {
+    function jio_render_profile_pagination($total_pages, $current, $param, $base_url = '') {
         if ($total_pages <= 1) {
             return;
         }
@@ -29,22 +29,22 @@ if (!function_exists('aksrt_render_profile_pagination')) {
             'format'    => '',
             'current'   => $current,
             'total'     => $total_pages,
-            'prev_text' => '<span aria-hidden="true">&lsaquo;</span><span class="screen-reader-text">' . esc_html__('上一页', 'aksrt') . '</span>',
-            'next_text' => '<span aria-hidden="true">&rsaquo;</span><span class="screen-reader-text">' . esc_html__('下一页', 'aksrt') . '</span>',
+            'prev_text' => '<span aria-hidden="true">&lsaquo;</span><span class="screen-reader-text">' . esc_html__('上一页', 'jio') . '</span>',
+            'next_text' => '<span aria-hidden="true">&rsaquo;</span><span class="screen-reader-text">' . esc_html__('下一页', 'jio') . '</span>',
             'mid_size'  => 1,
             'end_size'  => 1,
         ]);
         if ($links) {
-            echo '<nav class="profile-pagination" aria-label="' . esc_attr__('分页', 'aksrt') . '">' . $links . '</nav>'; // phpcs:ignore
+            echo '<nav class="profile-pagination" aria-label="' . esc_attr__('分页', 'jio') . '">' . $links . '</nav>'; // phpcs:ignore
         }
     }
 }
 
-if (!function_exists('aksrt_render_asset_pagination')) {
+if (!function_exists('jio_render_asset_pagination')) {
 	/**
 	 * Render user asset pagination without URL state.
 	 */
-	function aksrt_render_asset_pagination(int $total_pages, int $current, string $asset): void {
+	function jio_render_asset_pagination(int $total_pages, int $current, string $asset): void {
 		if ($total_pages <= 1) {
 			return;
 		}
@@ -59,9 +59,9 @@ if (!function_exists('aksrt_render_asset_pagination')) {
 		], static fn(int $page): bool => $page >= 1 && $page <= $total_pages)));
 		sort($pages);
 
-		echo '<nav class="profile-pagination" aria-label="' . esc_attr__('分页', 'aksrt') . '">';
+		echo '<nav class="profile-pagination" aria-label="' . esc_attr__('分页', 'jio') . '">';
 		if ($current > 1) {
-			echo '<button type="button" class="page-numbers prev" data-aksrt-asset-page="' . (int) ($current - 1) . '" data-aksrt-asset-key="' . esc_attr($asset) . '"><span aria-hidden="true">&lsaquo;</span><span class="screen-reader-text">' . esc_html__('上一页', 'aksrt') . '</span></button>';
+			echo '<button type="button" class="page-numbers prev" data-jio-asset-page="' . (int) ($current - 1) . '" data-jio-asset-key="' . esc_attr($asset) . '"><span aria-hidden="true">&lsaquo;</span><span class="screen-reader-text">' . esc_html__('上一页', 'jio') . '</span></button>';
 		}
 		$previous = 0;
 		foreach ($pages as $page) {
@@ -71,22 +71,22 @@ if (!function_exists('aksrt_render_asset_pagination')) {
 			if ($page === $current) {
 				echo '<span class="page-numbers current" aria-current="page">' . (int) $page . '</span>';
 			} else {
-				echo '<button type="button" class="page-numbers" data-aksrt-asset-page="' . (int) $page . '" data-aksrt-asset-key="' . esc_attr($asset) . '">' . (int) $page . '</button>';
+				echo '<button type="button" class="page-numbers" data-jio-asset-page="' . (int) $page . '" data-jio-asset-key="' . esc_attr($asset) . '">' . (int) $page . '</button>';
 			}
 			$previous = $page;
 		}
 		if ($current < $total_pages) {
-			echo '<button type="button" class="page-numbers next" data-aksrt-asset-page="' . (int) ($current + 1) . '" data-aksrt-asset-key="' . esc_attr($asset) . '"><span aria-hidden="true">&rsaquo;</span><span class="screen-reader-text">' . esc_html__('下一页', 'aksrt') . '</span></button>';
+			echo '<button type="button" class="page-numbers next" data-jio-asset-page="' . (int) ($current + 1) . '" data-jio-asset-key="' . esc_attr($asset) . '"><span aria-hidden="true">&rsaquo;</span><span class="screen-reader-text">' . esc_html__('下一页', 'jio') . '</span></button>';
 		}
 		echo '</nav>';
 	}
 }
 
-if (!function_exists('aksrt_render_profile_empty')) {
+if (!function_exists('jio_render_profile_empty')) {
     /**
      * 渲染空状态卡片
      */
-    function aksrt_render_profile_empty($icon_svg, $title, $desc = '', $cta_url = '', $cta_label = '') {
+    function jio_render_profile_empty($icon_svg, $title, $desc = '', $cta_url = '', $cta_label = '') {
         echo '<div class="profile-empty">';
         echo '<div class="profile-empty__icon" aria-hidden="true">' . $icon_svg . '</div>'; // phpcs:ignore
         echo '<h4 class="profile-empty__title">' . esc_html($title) . '</h4>';