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/widget-system/widget-admin-lifecycle.test.cjs

@@ -13,12 +13,12 @@ const renderer = fs.readFileSync(path.join(root, 'src/WidgetSystem/FormRenderer.
 const styles = fs.readFileSync(path.join(root, 'assets/widgets/admin.css'), 'utf8')
 
 test('lazy widget forms resolve assigned instances across core and customizer markup', () => {
-  assert.equal(core.resolveWidgetNumber('widget-aksrt_widget_posts[12][title]', 'widget-aksrt_widget_posts-12', '__i__'), '12')
-  assert.equal(core.resolveWidgetNumber('', 'widget-aksrt_widget_posts-8', '__i__'), '8')
+  assert.equal(core.resolveWidgetNumber('widget-jio_widget_posts[12][title]', 'widget-jio_widget_posts-12', '__i__'), '12')
+  assert.equal(core.resolveWidgetNumber('', 'widget-jio_widget_posts-8', '__i__'), '8')
   assert.equal(core.resolveWidgetNumber('', '', '4'), '4')
   assert.equal(core.resolveWidgetNumber('', '', '__i__'), '')
-  assert.equal(core.resolveWidgetNumber('', 'widget-aksrt_widget_posts-0', ''), '')
-  assert.match(admin, /customize-control-widget_form \.aksrt-widget-form-lazy/)
+  assert.equal(core.resolveWidgetNumber('', 'widget-jio_widget_posts-0', ''), '')
+  assert.match(admin, /customize-control-widget_form \.jio-widget-form-lazy/)
 })
 
 test('lazy form AJAX failures remain retryable and instance filters match WordPress widget forms', () => {
@@ -29,32 +29,32 @@ test('lazy form AJAX failures remain retryable and instance filters match WordPr
 test('sidebar toolbars drive reference-style AJAX export, import and template modals', () => {
   assert.match(wie, /widgets-holder-wrap:not\(#available-widgets\)/)
   assert.match(wie, /control-section-sidebar/)
-  assert.match(wie, /data-aksrt-wie-action/)
+  assert.match(wie, /data-jio-wie-action/)
   assert.match(wie, /data-sidebar-id/)
-  assert.match(wie, /aksrt-wie-btn-delete/)
+  assert.match(wie, /jio-wie-btn-delete/)
   assert.match(wie, /nonce: config\.transferNonce/)
   for (const action of ['export_sidebar', 'import_sidebar', 'list_templates', 'import_template']) {
-    assert.match(wie, new RegExp(`aksrt_widgets_${action}`))
-    assert.match(transfer, new RegExp(`wp_ajax_aksrt_widgets_${action}`))
+    assert.match(wie, new RegExp(`jio_widgets_${action}`))
+    assert.match(transfer, new RegExp(`wp_ajax_jio_widgets_${action}`))
   }
   assert.match(transfer, /check_ajax_referer\(self::NONCE, 'nonce'\)/)
   assert.match(transfer, /edit_theme_options/)
-  assert.doesNotMatch(transfer, /aksrt_widgets_template_preview|admin_post_|admin_notices/)
-  assert.doesNotMatch(admin, /data-aksrt-transfer-action|aksrt-widget-customizer-remove|aksrt-widget-form-lazy__load/)
-  assert.match(styles, /\.aksrt-wie-modal__dialog/)
+  assert.doesNotMatch(transfer, /jio_widgets_template_preview|admin_post_|admin_notices/)
+  assert.doesNotMatch(admin, /data-jio-transfer-action|jio-widget-customizer-remove|jio-widget-form-lazy__load/)
+  assert.match(styles, /\.jio-wie-modal__dialog/)
 })
 
 test('widget fields follow the current CSF compact palette and cloneable group patterns', () => {
-  assert.match(renderer, /aksrt-widget-palette-choice/)
-  assert.match(renderer, /<details class="aksrt-widget-repeater__row"/)
+  assert.match(renderer, /jio-widget-palette-choice/)
+  assert.match(renderer, /<details class="jio-widget-repeater__row"/)
   assert.match(renderer, /data-min-items=/)
   assert.match(admin, /function updateRepeaterControls/)
-  assert.match(styles, /\.aksrt-widget-choices--palette/)
-  assert.match(styles, /\.aksrt-widget-repeater__bar/)
-  assert.match(styles, /\.customize-control-widget_form \.aksrt-widget-field__label/)
+  assert.match(styles, /\.jio-widget-choices--palette/)
+  assert.match(styles, /\.jio-widget-repeater__bar/)
+  assert.match(styles, /\.customize-control-widget_form \.jio-widget-field__label/)
   assert.match(admin, /if \(!response\?\.success \|\| !response\.data\?\.html\) \{/)
   assert.match(admin, /t-notice/)
-  assert.match(styles, /\.aksrt-widget-field\.is-compact/)
+  assert.match(styles, /\.jio-widget-field\.is-compact/)
   assert.match(admin, /responseJSON\?\.data\?\.message/)
   assert.doesNotMatch(admin, /if \(!response\?\.success\) throw new Error/)
 })