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/balance-charge-modal.test.cjs

@@ -9,8 +9,8 @@
  * 的 opacity:0 形成隐形遮罩 → 整页所有按钮不可点击（2026-09-17 实测故障）。
  *
  * 因此 credits.css 必须以 (0,2,0) 特异性压制：
- *   .modal[data-aksrt-charge-modal]        { display: none; }
- *   .modal[data-aksrt-charge-modal].in     { display: flex; }
+ *   .modal[data-jio-charge-modal]        { display: none; }
+ *   .modal[data-jio-charge-modal].in     { display: flex; }
  * 展示态由 credits.js 自包含开关的内联 display:flex 驱动（不依赖
  * jQuery/Bootstrap 运行时；block 会破坏 .flex.jc 双轴居中——
  * .modal.flex .modal-dialog{margin:0} 在 block 下使对话框顶在左上角），
@@ -30,32 +30,32 @@ const creditsCss = read('assets', 'css', 'routes', 'user-center', 'credits.css')
 const balanceRest = read('src', 'Credits', 'BalanceServiceRest.php');
 
 test('弹窗壳为 Zibll refresh_modal 同构静态壳并带 data 钩子', () => {
-  assert.match(wallet, /class="modal flex jc fade"[^>]*data-aksrt-charge-modal/);
-  assert.match(wallet, /data-aksrt-charge-form/);
+  assert.match(wallet, /class="modal flex jc fade"[^>]*data-jio-charge-modal/);
+  assert.match(wallet, /data-jio-charge-form/);
   assert.match(wallet, /data-dismiss="modal"/);
   assert.match(wallet, /initiate-pay/);
 });
 
 test('弹窗壳静止态必须被 credits.css 显式隐藏（.flex 覆盖回归护栏）', () => {
   // (0,2,0) 特异性压制 main.css 的 .flex{display:flex}。
-  assert.match(creditsCss, /\.modal\[data-aksrt-charge-modal\]\s*\{\s*display:\s*none;/);
+  assert.match(creditsCss, /\.modal\[data-jio-charge-modal\]\s*\{\s*display:\s*none;/);
   // 打开态必须是 flex 而非 block：.modal.flex .modal-dialog{margin:0} 在
   // block 下使对话框顶在左上角（无头 Chrome 几何实证），flex 下由壳的
   // .flex.jc 双轴居中（Zibll 生产环境即此形态）。
-  assert.match(creditsCss, /\.modal\[data-aksrt-charge-modal\]\.in\s*\{\s*display:\s*flex;/);
-  assert.doesNotMatch(creditsCss, /\.modal\[data-aksrt-charge-modal\]\.in\s*\{\s*display:\s*block;/);
+  assert.match(creditsCss, /\.modal\[data-jio-charge-modal\]\.in\s*\{\s*display:\s*flex;/);
+  assert.doesNotMatch(creditsCss, /\.modal\[data-jio-charge-modal\]\.in\s*\{\s*display:\s*block;/);
   // 购买积分弹窗壳同构（服务端静态输出 .modal.flex.jc.fade），静止态同样
   // 必须显式隐藏，否则隐形遮罩拦截整页点击（2026-09-18 实测回归）。
   const balance = read('inc', 'helpers', 'user-center-renderers', 'credits-balance.php');
-  assert.match(balance, /class="modal flex jc fade"[^>]*data-aksrt-points-pay-modal/);
-  assert.match(creditsCss, /\.modal\[data-aksrt-points-pay-modal\]\s*\{\s*display:\s*none;/);
-  assert.match(creditsCss, /\.modal\[data-aksrt-points-pay-modal\]\.in\s*\{\s*display:\s*flex;/);
+  assert.match(balance, /class="modal flex jc fade"[^>]*data-jio-points-pay-modal/);
+  assert.match(creditsCss, /\.modal\[data-jio-points-pay-modal\]\s*\{\s*display:\s*none;/);
+  assert.match(creditsCss, /\.modal\[data-jio-points-pay-modal\]\.in\s*\{\s*display:\s*flex;/);
 });
 
 test('开关自包含：不依赖 jQuery/Bootstrap modal 运行时', () => {
   assert.match(creditsJs, /function openChargeModal/);
   assert.match(creditsJs, /function closeChargeModal/);
-  assert.match(creditsJs, /data-aksrt-charge-open/);
+  assert.match(creditsJs, /data-jio-charge-open/);
   // 动态创建遮罩层（bootstrap.min.css 已有 .modal-backdrop 规则）。
   assert.match(creditsJs, /modal-backdrop fade in/);
   // 充值弹窗开关不得回退到 jQuery modal 运行时（时序异常时弹窗打不开）。