chore(branding): remove leftover upstream theme identifiers

The theme was renamed Zibll/子比 → AKSRT → Jio, but upstream branding
survived the sweeps in CSS classes, the SVG sprite prefix, a persisted
widget field ID, JS events, admin Vue class names, test infrastructure
and docblocks.

Renames:
- zib-widget / zib-widget-wrap / zib-slider → jio-widget-box /
  jio-widget-box-wrap / jio-slider-box (jio-widget is taken by the modern
  widget shell, jio-box-* by the card primitives)
- zib-partners-scroll + zps-* → jio-partners-scroll + jps-*
- zib-combo-info-card + zci-* → jio-combo-info-card + jci-*
- zibsvg- → jiosvg-, including the exported picker helpers and the
  fa-zibsvg- family-prefix guard
- zibpay_type → pay_type; the dual-read fallback in PostQuery collapses
  to a single key
- [zibajax="submit"] dropped (no PHP emitter); zib_ajax.success →
  jio_ajax.success
- aks-* admin Vue classes → jio-*
- zib_palette() → palette()

User-facing vendor traces are gone: the floating "more" button default no
longer ships a zibll.com link or 子比主题 marketing copy, the notice
widget ships no preset promo entries, and the four 官网教程 links are
removed from the post-list admin schema.

Test infrastructure renamed to neutral names (docker-compose.reference.yml,
Caddyfile, article-baseline.json, modern-widgets-contract.test.cjs) with
their DB/volume/env/slug identifiers following.

Kept intentionally, documented in tests/fixtures/README.md: the golden
fixture reference fingerprint (a SHA-256 record of an external directory,
read by validate-widget-golden / generate-widget-golden-fixture /
audit-widget-system), the doesNotMatch guards that prove the old tokens are
gone, and the reference theme's own meta key in the visual fixtures.

No backward-compat or data migration: saved widget configs holding old
icon keys or the old field ID silently lose them, per the project's
rewrite-over-compatibility rule.

Verified: 132/132 node contract tests, php tests/widget-system/run.php
(146 assertions), audit-admin-contracts, audit-psr4-paths and
validate-widget-golden all green; tracked bundles regenerated and in sync.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

assets/js/pay-vip.js

@@ -64,7 +64,7 @@
     return "";
   }
 
-  // 会员图标（Zibll zibpay_get_vip_icon：vip_N.svg 或自定义 img_icon）。
+  // 会员图标：vip_N.svg 或自定义 img_icon。
   function vipIcon(levelInfo) {
     if (levelInfo && levelInfo.img_icon) {
       var img = node("img", "img-icon");
@@ -76,7 +76,7 @@
     return node("i", "fa fas fa-gem");
   }
 
-  // 价格行（Zibll：mark 小号 px12 前缀 + 数字；原价 original-price.relative）。
+  // 价格行：mark 小号 px12 前缀 + 数字；原价 original-price.relative。
   function priceRow(mark, priceLabel, showLabel) {
     var row = node("div", "flex abl gap6");
     var price = node("div", "product-price c-red");
@@ -120,10 +120,10 @@
       input.checked = index === 0;
       append(label, input);
 
-      // Zibll 套餐卡：zib-widget vip-product relative text-center product-box
+      // 套餐卡：jio-widget-box vip-product relative text-center product-box
       // （右上 tag + 价格行 + 时长 badge，无标题行）。
-      var product = node("div", "zib-widget vip-product relative text-center product-box");
-      // 标签颜色取后台「标签颜色」配置，未配置时回退参考主题默认的 jb-yellow。
+      var product = node("div", "jio-widget-box vip-product relative text-center product-box");
+      // 标签颜色取后台「标签颜色」配置，未配置时回退默认的 jb-yellow。
       if (item.discount_tag) append(product, htmlNode("div", "abs-right vip-tag badg " + (item.tag_class || "jb-yellow"), item.discount_tag));
       append(product, priceRow(mark, item.price_label || "", item.show_price_label || ""));
       if (item.days_label) append(product, node("div", "muted-2-color c-blue em09 p2-10 badg radius", item.days_label));
@@ -135,11 +135,11 @@
 
   function renderMethods(parent, methods, cardPass, wallet) {
     methods = Array.isArray(methods) ? methods : [];
-    if (!methods.length) return; // 无可用支付方式：由按钮区渲染 Zibll 同款 badg 提示。
+    if (!methods.length) return; // 无可用支付方式：由按钮区渲染 badg 提示。
     wallet = wallet || {};
     var defaultMethod = text(methods[0].id || "balance");
 
-    // 支付方式选择行（Zibll zibpay_get_initiate_pay_input 同构：
+    // 支付方式选择行（与余额充值/购买积分弹窗同构：
     // .payment-method-radio.hollow-radio + logo 图 + data-for 选中模型；
     // 与余额充值/购买积分弹窗完全一致的组件）。
     if (methods.length > 1) {
@@ -163,7 +163,7 @@
       append(parent, row);
     }
 
-    // 我的余额盒（Zibll user_balance_box 同构：选中余额渠道时显示）。
+    // 我的余额盒（选中余额渠道时显示）。
     if (methods.some(function (m) { return text(m.id) === "balance"; })) {
       var balanceBox = node("div", "mb10 muted-box padding-h10");
       balanceBox.setAttribute("data-controller", "payment_method");
@@ -180,7 +180,7 @@
       append(parent, balanceBox);
     }
 
-    // 卡密盒（Zibll password_box 同构：mb10 padding-h10 padding-w6 +
+    // 卡密盒（mb10 padding-h10 padding-w6 +
     // data-controller="payment_method" 契约 + form-control 输入）。
     if (cardPass) {
       var box = node("div", "mb10 padding-h10 padding-w6");
@@ -372,7 +372,7 @@
     modal.setAttribute("data-jio-vip-modal", "");
     if (view.version && view.version.catalog) modal.setAttribute("data-jio-vip-version", view.version.catalog);
 
-    // 关闭按钮（Zibll 原版内联 SVG close 图标）。
+    // 关闭按钮（内联 SVG close 图标）。
     var close = document.createElement("button");
     close.type = "button";
     close.className = "close";
@@ -388,7 +388,7 @@
     close.appendChild(closeSvg);
     append(modal, close);
 
-    // 用户信息（Zibll：list-inline user-box）。
+    // 用户信息（list-inline user-box）。
     var userBox = node("ul", "list-inline user-box");
     var avatarItem = node("li");
     var avatarWrap = node("div", "avatar-img");
@@ -412,7 +412,7 @@
     append(userBox, userInfo);
     append(modal, userBox);
 
-    // 会员缩略卡 tabs（Zibll vip-cardminis：vip-card.vip-cardmini + active-icon 勾）。
+    // 会员缩略卡 tabs（vip-cardminis：vip-card.vip-cardmini + active-icon 勾）。
     var tabs = node("ul", "flex jsb mt10 mb20 vip-cardminis gutters-5");
     var content = node("div", "tab-content mt10");
     var activeIndex = -1;
@@ -455,7 +455,7 @@
       append(tabItem, activeIcon);
       append(tabs, tabItem);
 
-      // pane（Zibll tab-pane fade active in）。
+      // pane（tab-pane fade active in）。
       var pane = node("div", "tab-pane fade jio-vip-pane" + (active ? " active in" : ""));
       pane.id = tabId;
       pane.hidden = !active;
@@ -463,7 +463,7 @@
       form.setAttribute("onsubmit", "return false;");
       var row = node("div", "pay-vip-form-row");
 
-      // 左侧会员信息（Zibll zibpay_get_pay_vip_info_box）。
+        // 会员信息卡（v-info 区块）。
       var info = node("div", "text-center pay-vip-info");
       var iconbox = node("div", "v-iconbox mb10 flex jc gap10");
       var vicon = node("div", "v-icon flex jc");
@@ -487,7 +487,7 @@
       renderProducts(products, group.items, wallet.mark);
       var points = catalog.points_exchange || {};
       if (allowed.points_exchange !== false && points.enabled && Array.isArray(points.packages) && points.packages.length) {
-        // 参考主题 zibpay_get_pay_uservip_modal 的积分兑换入口：
+        // 积分兑换入口：
         // btn-block but mb10 padding-lg c-green mini-radius + points-color 图标 +
         // fa-angle-right；点击开服务端静态兑换弹窗（不再跳转用户中心）。
         var pointsLink = node("a", "btn-block but mb10 padding-lg c-green mini-radius");
@@ -508,9 +508,8 @@
       var noMethod = methods.length === 0;
       var reason = actionReason(reasons[actionName]);
       var canPurchase = actionAllowed && !noMethod;
-      // 按钮字样对齐参考主题：会员弹窗即 zibpay_get_initiate_pay_input(4)
-      // 默认文案「立即支付」（开通/续费场景一致）；无可用支付方式时渲染
-      // Zibll 同款 badg 提示，而非禁用按钮。
+      // 按钮字样对齐会员弹窗默认文案「立即支付」（开通/续费场景一致）；无可用支付方式时渲染
+      // badg 提示，而非禁用按钮。
       if (noMethod) {
         append(products, node("span", "badg px12 c-yellow-2", "暂时无法支付，请与客服联系"));
       } else {