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/single-author-bar.php

@@ -6,7 +6,7 @@
  *   show_time  bool   Relative publish/update time (default true)
  *   meta_html  string Prebuilt single-metabox HTML
  *
- * @package AKSRT
+ * @package Jio
  */
 
 defined('ABSPATH') || exit;
@@ -17,20 +17,20 @@ $meta_html = (string) ($args['meta_html'] ?? '');
 
 $author_id = (int) get_the_author_meta('ID');
 $author_name = get_the_author();
-$author_url = function_exists('aksrt_get_user_home_url') ? aksrt_get_user_home_url($author_id) : get_author_posts_url($author_id);
+$author_url = function_exists('jio_get_user_home_url') ? jio_get_user_home_url($author_id) : get_author_posts_url($author_id);
 $modified_ts = (int) get_the_modified_time('U');
 $published_ts = (int) get_the_time('U');
 $use_modified = $modified_ts > $published_ts;
 $rel_base = $use_modified ? $modified_ts : $published_ts;
-$rel_label = $use_modified ? __('更新', 'aksrt') : __('发布', 'aksrt');
+$rel_label = $use_modified ? __('更新', 'jio') : __('发布', 'jio');
 $abs_fmt = $use_modified
-	? sprintf(__('%s更新', 'aksrt'), get_the_modified_time('Y年m月d日 H:i'))
-	: sprintf(__('%s发布', 'aksrt'), get_the_time('Y年m月d日 H:i'));
+	? sprintf(__('%s更新', 'jio'), get_the_modified_time('Y年m月d日 H:i'))
+	: sprintf(__('%s发布', 'jio'), get_the_time('Y年m月d日 H:i'));
 $time_text = human_time_diff($rel_base, (int) current_time('timestamp')) . $rel_label;
-$description = function_exists('aksrt_get_user_description')
-	? aksrt_get_user_description($author_id)
+$description = function_exists('jio_get_user_description')
+	? jio_get_user_description($author_id)
 	: trim((string) get_the_author_meta('description'));
-$name_html = aksrt_get_user_name([
+$name_html = jio_get_user_name([
 	'id'         => $author_id,
 	'class'      => 'name flex ac flex1',
 	'name_class' => '',
@@ -40,9 +40,9 @@ $name_html = aksrt_get_user_name([
 	'level'      => true,
 	'follow'     => false,
 ]);
-$follow_html = aksrt_get_user_follow('px12-sm ml10 follow but c-red', $author_id);
-$reward_button = get_current_user_id() !== $author_id && function_exists('aksrt_get_rewards_button')
-	? aksrt_get_rewards_button($author_id, 'ml6 but c-yellow px12-sm', get_the_ID())
+$follow_html = jio_get_user_follow('px12-sm ml10 follow but c-red', $author_id);
+$reward_button = get_current_user_id() !== $author_id && function_exists('jio_get_rewards_button')
+	? jio_get_rewards_button($author_id, 'ml6 but c-yellow px12-sm', get_the_ID())
 	: '';
 ?>
 
@@ -50,8 +50,8 @@ $reward_button = get_current_user_id() !== $author_id && function_exists('aksrt_
 	<div class="user-info flex ac article-avatar">
 		<a href="<?php echo esc_url($author_url); ?>">
 			<span class="avatar-img">
-				<?php if (function_exists('aksrt_get_avatar_html')) : ?>
-					<?php echo aksrt_get_avatar_html($author_id, 42, ['class' => 'avatar avatar-id-' . $author_id]); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?>
+				<?php if (function_exists('jio_get_avatar_html')) : ?>
+					<?php echo jio_get_avatar_html($author_id, 42, ['class' => 'avatar avatar-id-' . $author_id]); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?>
 				<?php else : ?>
 					<?php echo get_avatar($author_id, 42, '', esc_attr($author_name), ['class' => 'avatar avatar-id-' . $author_id]); ?>
 				<?php endif; ?>
@@ -67,8 +67,8 @@ $reward_button = get_current_user_id() !== $author_id && function_exists('aksrt_
 						<span class="icon-circle"><?php echo esc_html($description); ?></span>
 					<?php endif; ?>
 					<?php
-					$post_city = function_exists('aksrt_get_post_author_city_badge_html')
-						? aksrt_get_post_author_city_badge_html($author_id, 'badg badg-sm')
+					$post_city = function_exists('jio_get_post_author_city_badge_html')
+						? jio_get_post_author_city_badge_html($author_id, 'badg badg-sm')
 						: '';
 					if ($post_city !== '') {
 						echo $post_city; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
@@ -80,7 +80,7 @@ $reward_button = get_current_user_id() !== $author_id && function_exists('aksrt_
 				<?php echo $follow_html; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?>
 				<?php if ($reward_button !== '') : ?>
 					<?php echo $reward_button; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?>
-					<?php aksrt_render_rewards_template_for_user($author_id, get_the_ID()); ?>
+					<?php jio_render_rewards_template_for_user($author_id, get_the_ID()); ?>
 				<?php endif; ?>
 			</div>
 		</div>