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/admin/baidu-push-harness.php

@@ -45,7 +45,7 @@ namespace {
 	function wp_nonce_field($action, $name) { echo '<input type="hidden" name="' . $name . '" value="nonce" />'; }
 	function wp_unslash($s) { return $s; }
 	function sanitize_text_field($s) { return trim(strip_tags((string) $s)); }
-	function wp_verify_nonce($nonce, $action) { return $nonce === 'valid-nonce' && $action === 'aksrt_push_meta_save'; }
+	function wp_verify_nonce($nonce, $action) { return $nonce === 'valid-nonce' && $action === 'jio_push_meta_save'; }
 	function is_wp_error($t) { return $t instanceof WP_Error; }
 	function home_url($path = '/') { return 'https://example.test' . $path; }
 	function current_time($type = 'mysql') { return '2026-10-13 12:00:00'; }
@@ -56,7 +56,7 @@ namespace {
 	}
 	function wp_is_post_revision($id) { return false; }
 	function wp_is_post_autosave($id) { return false; }
-	function aksrt_searchable_post_types(): array { return ['post']; }
+	function jio_searchable_post_types(): array { return ['post']; }
 	function get_object_taxonomies($types, $output = 'names') { return ['post_tag', 'category', 'post_format']; }
 
 	// Outgoing HTTP: every call is captured so channel/URL/body can be asserted.
@@ -79,7 +79,7 @@ namespace {
 	function delete_term_meta($id, $key) { unset($GLOBALS['push_term_meta'][$id][$key]); return true; }
 }
 
-namespace AKSRT\Settings {
+namespace Jio\Settings {
 	class Settings {
 		public static array $config = [];
 		public static function get_search_push_settings(): array { return self::$config; }
@@ -90,8 +90,8 @@ namespace {
 	require_once dirname(__DIR__, 2) . '/src/Extensions/SearchPush.php';
 	require_once dirname(__DIR__, 2) . '/src/Extensions/SearchPushMetaBox.php';
 
-	use AKSRT\Extensions\SearchPush;
-	use AKSRT\Extensions\SearchPushMetaBox;
+	use Jio\Extensions\SearchPush;
+	use Jio\Extensions\SearchPushMetaBox;
 
 	$failures = [];
 	$check = static function (string $label, bool $ok) use (&$failures): void {
@@ -101,7 +101,7 @@ namespace {
 	};
 
 	$reset = static function (array $config): void {
-		\AKSRT\Settings\Settings::$config = $config;
+		\Jio\Settings\Settings::$config = $config;
 		$GLOBALS['push_requests']  = [];
 		$GLOBALS['push_post_meta'] = [];
 		$GLOBALS['push_term_meta'] = [];
@@ -236,8 +236,8 @@ namespace {
 	$check('面板含普通收录成功', str_contains($html, '普通收录：成功'));
 	$check('面板含快速收录失败', str_contains($html, '快速收录：失败'));
 	$check('面板含更新时间', str_contains($html, '2026-10-13 09:00:00'));
-	$check('面板含重新提交勾选', str_contains($html, 'name="aksrt_push_resubmit"'));
-	$check('面板含 nonce 字段', str_contains($html, 'name="aksrt_push_meta_nonce"'));
+	$check('面板含重新提交勾选', str_contains($html, 'name="jio_push_resubmit"'));
+	$check('面板含 nonce 字段', str_contains($html, 'name="jio_push_meta_nonce"'));
 	$check('面板转义接口 JSON', str_contains($html, '{&quot;success&quot;:1}'));
 
 	ob_start();
@@ -251,7 +251,7 @@ namespace {
 	$box->render_term_panel($term);
 	$termHtml = (string) ob_get_clean();
 	$check('术语编辑表单为表单行', str_contains($termHtml, '<tr class="form-field">'));
-	$check('术语编辑表单含重新提交', str_contains($termHtml, 'name="aksrt_push_resubmit"'));
+	$check('术语编辑表单含重新提交', str_contains($termHtml, 'name="jio_push_resubmit"'));
 
 	if ($failures) {
 		echo "Baidu push harness FAILED\n";