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>

src/Core/SEOHead.php

@@ -1,9 +1,9 @@
 <?php
 /**
- * @package AKSRT
+ * @package Jio
  */
 
-namespace AKSRT\Core;
+namespace Jio\Core;
 
 defined('ABSPATH') || exit;
 
@@ -20,8 +20,8 @@ class SEOHead {
 
     public function init(): void {
         // seo_enabled 主开关：关闭时不挂载任何 wp_head 输出
-        if (class_exists('\AKSRT\Settings\Settings')) {
-            $seo = \AKSRT\Settings\Settings::get_seo_settings();
+        if (class_exists('\Jio\Settings\Settings')) {
+            $seo = \Jio\Settings\Settings::get_seo_settings();
             if (empty($seo['seo_enabled'])) return;
         }
         // 单一出口：所有 SEO/OG/JSON-LD 输出集中在 priority 2。
@@ -39,8 +39,8 @@ class SEOHead {
             return $cache;
         }
 
-        if (class_exists('\AKSRT\Settings\Settings')) {
-            $s = \AKSRT\Settings\Settings::get_all();
+        if (class_exists('\Jio\Settings\Settings')) {
+            $s = \Jio\Settings\Settings::get_all();
         } else {
             $s = [];
         }
@@ -144,7 +144,7 @@ class SEOHead {
          *
          * @param array $payload 规范 SEO 负载。
          */
-        return apply_filters('aksrt_seo_head_payload', $payload);
+        return apply_filters('jio_seo_head_payload', $payload);
     }
 
     /**
@@ -159,9 +159,9 @@ class SEOHead {
         };
 
         return [
-            'title'       => $get('_aksrt_seo_title'),
-            'description' => $get('_aksrt_seo_description'),
-            'keywords'    => $get('_aksrt_seo_keywords'),
+            'title'       => $get('_jio_seo_title'),
+            'description' => $get('_jio_seo_description'),
+            'keywords'    => $get('_jio_seo_keywords'),
         ];
     }
 
@@ -176,9 +176,9 @@ class SEOHead {
         };
 
         return [
-            'title'       => $get('_aksrt_seo_title'),
-            'description' => $get('_aksrt_seo_description'),
-            'keywords'    => $get('_aksrt_seo_keywords'),
+            'title'       => $get('_jio_seo_title'),
+            'description' => $get('_jio_seo_description'),
+            'keywords'    => $get('_jio_seo_keywords'),
         ];
     }
 
@@ -212,8 +212,8 @@ class SEOHead {
                 return $image;
             }
         }
-        if (function_exists('aksrt_get_first_content_image_url')) {
-            $image = (string) aksrt_get_first_content_image_url($post->ID);
+        if (function_exists('jio_get_first_content_image_url')) {
+            $image = (string) jio_get_first_content_image_url($post->ID);
             if ($image !== '') {
                 return $image;
             }
@@ -221,8 +221,8 @@ class SEOHead {
         if ($cfg['default_image'] !== '') {
             return $cfg['default_image'];
         }
-        if (class_exists('\AKSRT\Settings\Settings')) {
-            return (string) \AKSRT\Settings\Settings::logo_url();
+        if (class_exists('\Jio\Settings\Settings')) {
+            return (string) \Jio\Settings\Settings::logo_url();
         }
         return '';
     }
@@ -234,11 +234,11 @@ class SEOHead {
         $cfg = $this->config();
         $payload = $this->resolve_payload();
 
-        echo "\n<!-- AKSRT SEO -->\n";
+        echo "\n<!-- Jio SEO -->\n";
 
         // Favicon（无站点图标时回退）。
-        if (function_exists('aksrt_get_favicon_url')) {
-            $favicon = (string) aksrt_get_favicon_url();
+        if (function_exists('jio_get_favicon_url')) {
+            $favicon = (string) jio_get_favicon_url();
             if ($favicon !== '' && !has_site_icon()) {
                 printf('<link rel="icon" href="%s">' . "\n", esc_url($favicon));
             }
@@ -267,7 +267,7 @@ class SEOHead {
             $this->render_jsonld($payload, $cfg);
         }
 
-        echo "<!-- /AKSRT SEO -->\n";
+        echo "<!-- /Jio SEO -->\n";
     }
 
     /**