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/js/vip-purchase-coordinator.js

@@ -5,7 +5,7 @@
  * orders use bounded, visibility-aware polling with AbortController support;
  * terminal states invalidate the user-scoped modal cache exactly once.
  *
- * @package AKSRT
+ * @package Jio
  */
 (function (window, document) {
   "use strict";
@@ -33,7 +33,7 @@
   };
 
   function userScope() {
-    var config = window.aksrtData || window.aksrt || {};
+    var config = window.jioData || window.jio || {};
     var userId = parseInt(config.userId || config.user_id || 0, 10) || 0;
     var current = userId > 0 ? "user:" + userId : (config.isLoggedIn ? "auth" : "guest");
     if (lastScope && lastScope !== current) clearFlights();
@@ -56,7 +56,7 @@
     polls = Object.create(null);
   }
 
-  ["aksrt:auth:logout", "aksrt:account-switch", "aksrt:logout", "aksrt:user:logout", "aksrt:auth:changed", "wp_logout"].forEach(function (eventName) {
+  ["jio:auth:logout", "jio:account-switch", "jio:logout", "jio:user:logout", "jio:auth:changed", "wp_logout"].forEach(function (eventName) {
     document.addEventListener(eventName, clearFlights);
   });
 
@@ -78,7 +78,7 @@
   }
 
   function request(path, options) {
-    return window.AksrtRequest.request(path, options || {}).then(function (result) {
+    return window.JioRequest.request(path, options || {}).then(function (result) {
       return {
         ok: true,
         status: Number(result.status || 200),
@@ -89,7 +89,7 @@
   }
 
   function invalidate(tags) {
-    window.AksrtModalRuntime.invalidate(tags || ["vip", "orders"]);
+    window.JioModalRuntime.invalidate(tags || ["vip", "orders"]);
   }
 
   function callback(options, name) {
@@ -102,7 +102,7 @@
       options[name].apply(null, args);
     } catch (error) {
       if (window.console && typeof window.console.error === "function") {
-        window.console.error("[AKSRT VIP] callback failed", error);
+        window.console.error("[Jio VIP] callback failed", error);
       }
     }
   }
@@ -117,7 +117,7 @@
 
     var key = userScope() + ":" + String(packageId) + ":" + method;
     if (createFlights[key]) return createFlights[key].promise;
-    if (!operationKeys[key]) operationKeys[key] = window.AksrtRequest.createIdempotencyKey();
+    if (!operationKeys[key]) operationKeys[key] = window.JioRequest.createIdempotencyKey();
 
     var requestController = !options.signal && window.AbortController
       ? new window.AbortController()
@@ -161,7 +161,7 @@
       return Promise.resolve({ ok: false, status: 400, json: { message: "兑换套餐无效" } });
     }
     var key = scope + ":points-exchange:" + String(packageId);
-    if (!operationKeys[key]) operationKeys[key] = window.AksrtRequest.createIdempotencyKey();
+    if (!operationKeys[key]) operationKeys[key] = window.JioRequest.createIdempotencyKey();
     return request("/pay/vip/points-exchange", {
       method: "POST",
       headers: { "Idempotency-Key": operationKeys[key] },
@@ -415,7 +415,7 @@
     };
   }
 
-  window.AksrtVipPurchaseCoordinator = {
+  window.JioVipPurchaseCoordinator = {
     purchase: purchase,
     exchange: exchange,
     poll: poll,