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>

assets/admin/src/pages/CmsCredits.vue

@@ -1,20 +1,20 @@
 <template>
-  <div class="aksrt-page-container">
-    <h2 class="aksrt-page-title">积分配置</h2>
-    <p class="aksrt-page-desc">
+  <div class="jio-page-container">
+    <h2 class="jio-page-title">积分配置</h2>
+    <p class="jio-page-desc">
       配置积分规则与发放策略。可自定义货币名称（如”金币”、”魔石”等）。用户余额与手工调整在 WordPress 原生”用户”菜单中管理。
     </p>
 
-    <n-card class="aksrt-section-card">
-      <div class="aksrt-section-header"><h3>主开关 + 基础设置</h3></div>
-      <n-form :model="cfg" label-placement="left" label-width="200" class="aksrt-form">
+    <n-card class="jio-section-card">
+      <div class="jio-section-header"><h3>主开关 + 基础设置</h3></div>
+      <n-form :model="cfg" label-placement="left" label-width="200" class="jio-form">
         <n-form-item label="启用积分系统">
           <n-switch v-model:value="cfg.enabled" />
         </n-form-item>
         <n-form-item label="自定义货币名称">
           <n-input v-model:value="cfg.currency_name" placeholder="积分" maxlength="20" />
           <template #feedback>
-            <span class="aksrt-hint-text">自定义货币显示名称，如"金币"、"魔石"等。留空则使用默认名称"积分"。</span>
+            <span class="jio-hint-text">自定义货币显示名称，如"金币"、"魔石"等。留空则使用默认名称"积分"。</span>
           </template>
         </n-form-item>
         <n-form-item label="注册赠送积分">
@@ -23,9 +23,9 @@
       </n-form>
     </n-card>
 
-    <n-card class="aksrt-section-card">
-      <div class="aksrt-section-header"><h3>每日签到</h3></div>
-      <n-form :model="cfg.daily_signin" label-placement="left" label-width="200" class="aksrt-form">
+    <n-card class="jio-section-card">
+      <div class="jio-section-header"><h3>每日签到</h3></div>
+      <n-form :model="cfg.daily_signin" label-placement="left" label-width="200" class="jio-form">
         <n-form-item label="启用">
           <n-switch v-model:value="cfg.daily_signin.enabled" />
         </n-form-item>
@@ -40,15 +40,15 @@
             :autosize="{ minRows: 2 }"
           />
           <template #feedback>
-            <span class="aksrt-hint-text">连续 N 天时额外发放的积分。</span>
+            <span class="jio-hint-text">连续 N 天时额外发放的积分。</span>
           </template>
         </n-form-item>
       </n-form>
     </n-card>
 
-    <n-card class="aksrt-section-card">
-      <div class="aksrt-section-header"><h3>评论奖励</h3></div>
-      <n-form :model="cfg.comment_reward" label-placement="left" label-width="200" class="aksrt-form">
+    <n-card class="jio-section-card">
+      <div class="jio-section-header"><h3>评论奖励</h3></div>
+      <n-form :model="cfg.comment_reward" label-placement="left" label-width="200" class="jio-form">
         <n-form-item label="启用">
           <n-switch v-model:value="cfg.comment_reward.enabled" />
         </n-form-item>
@@ -67,9 +67,9 @@
       </n-form>
     </n-card>
 
-    <n-card class="aksrt-section-card">
-      <div class="aksrt-section-header"><h3>Ref 推广奖励</h3></div>
-      <n-form :model="cfg.referral_reward" label-placement="left" label-width="200" class="aksrt-form">
+    <n-card class="jio-section-card">
+      <div class="jio-section-header"><h3>Ref 推广奖励</h3></div>
+      <n-form :model="cfg.referral_reward" label-placement="left" label-width="200" class="jio-form">
         <n-form-item label="启用">
           <n-switch v-model:value="cfg.referral_reward.enabled" />
         </n-form-item>
@@ -91,19 +91,19 @@
       </n-form>
     </n-card>
 
-    <n-card class="aksrt-section-card">
-      <div class="aksrt-section-header"><h3>下载消费（参考）</h3></div>
-      <n-form :model="cfg" label-placement="left" label-width="200" class="aksrt-form">
+    <n-card class="jio-section-card">
+      <div class="jio-section-header"><h3>下载消费（参考）</h3></div>
+      <n-form :model="cfg" label-placement="left" label-width="200" class="jio-form">
         <n-form-item :label="`默认积分价参考（${cfg.currency_name || '积分'}）`">
           <n-input-number v-model:value="cfg.download_default_cost" :min="0" :max="100000" />
           <template #feedback>
-            <span class="aksrt-hint-text">实际价格以文章「付费内容设置」的积分价或现金价为准；下载解锁走收银台订单，不按次扣费。</span>
+            <span class="jio-hint-text">实际价格以文章「付费内容设置」的积分价或现金价为准；下载解锁走收银台订单，不按次扣费。</span>
           </template>
         </n-form-item>
       </n-form>
     </n-card>
 
-    <div class="aksrt-form-footer">
+    <div class="jio-form-footer">
       <n-button type="primary" :loading="saving" @click="saveCfg">保存配置</n-button>
     </div>
   </div>