feat(runtime): 全站前端脚本统一接入 AksrtFrontend 全局 DOM 生命周期

- rehydrate.js 新增 boot()/aksrt:ready 事件，支持 boot 后晚注册立即以 init 触发
- aksrt-runtime.js 初始加载改走 AksrtFrontend.boot，tooltip/倒计时注册为组件
- 约 30 个前端脚本（首页、评论、支付、路由、页面叶子、widgets）
  从直接 DOMContentLoaded 迁移为 AksrtFrontend.register，并加幂等标记
- section-navs 依赖改为 aksrt-runtime，保证注册时序
- 清理死代码：删除孤儿 loader.js/main.js 及 runtime/page-navs 遗留副本
- loader.js 移除已迁移模块的 tbquire 路径映射，main.js 相应瘦身
- build-public-assets.mjs 增加 runtime/main.min.js 自动压缩步骤
- 新增 4 个契约测试（homepage-dom/rehydrate-runtime/global-dom-init/
  public-bundle-parity），3 个既有 harness 适配注册表初始化方式

assets/js/author.js

@@ -13,14 +13,30 @@
 (function () {
   'use strict';
 
+  var globalEventsBound = false;
+
+  function elementsIn(root, selector) {
+    var elements = [];
+    root = root || document;
+    if (root.nodeType === 1 && root.matches(selector)) elements.push(root);
+    if (root.querySelectorAll) root.querySelectorAll(selector).forEach(function (element) { elements.push(element); });
+    return elements;
+  }
+
+  function elementById(root, id) {
+    root = root || document;
+    if (root.nodeType === 1 && root.id === id) return root;
+    return root.querySelector ? root.querySelector('#' + id) : null;
+  }
+
   function notifyLoadError() {
     if (typeof notyf === 'function') {
       notyf('加载失败，请重试', 'danger');
     }
   }
 
-  function initPublicDashboards() {
-    document.querySelectorAll('.dashboard--public').forEach(function (root) {
+  function initPublicDashboards(scope) {
+    elementsIn(scope, '.dashboard--public').forEach(function (root) {
       if (root.dataset.aksrtAuthorBound === '1') return;
       root.dataset.aksrtAuthorBound = '1';
 
@@ -138,13 +154,13 @@
     });
   }
 
-  function initCoverUpload() {
+  function initCoverUpload(root) {
     var cfg = window.aksrtAuthorPage || {};
     var upload = cfg.coverUpload || null;
     if (!upload || !upload.enabled || !upload.restUrl) return;
 
-    var btn = document.getElementById(upload.buttonId || 'aksrt-upload-bg-btn');
-    var input = document.getElementById(upload.inputId || 'aksrt-bg-file-input');
+    var btn = elementById(root, upload.buttonId || 'aksrt-upload-bg-btn');
+    var input = elementById(root, upload.inputId || 'aksrt-bg-file-input');
     if (!btn || !input || btn.dataset.aksrtCoverBound === '1') return;
 
     btn.dataset.aksrtCoverBound = '1';
@@ -238,13 +254,13 @@
     });
   }
 
-  function initAvatarUpload() {
+  function initAvatarUpload(root) {
     var upload = (window.aksrtUserCenter || {}).avatarUpload;
     if (!upload || !upload.enabled || !upload.restUrl) return;
 
-    var button = document.getElementById(upload.buttonId || 'aksrt-upload-avatar-btn');
-    var input = document.getElementById(upload.inputId || 'aksrt-avatar-file-input');
-    var image = document.getElementById(upload.imageId || 'aksrt-user-avatar-image');
+    var button = elementById(root, upload.buttonId || 'aksrt-upload-avatar-btn');
+    var input = elementById(root, upload.inputId || 'aksrt-avatar-file-input');
+    var image = elementById(root, upload.imageId || 'aksrt-user-avatar-image');
     if (!button || !input || button.dataset.aksrtAvatarBound === '1') return;
     button.dataset.aksrtAvatarBound = '1';
 
@@ -297,8 +313,8 @@
     });
   }
 
-  function initCoverMenus() {
-    document.querySelectorAll('[data-aksrt-menu]').forEach(function (menu) {
+  function initCoverMenus(root) {
+    elementsIn(root, '[data-aksrt-menu]').forEach(function (menu) {
       if (menu.dataset.aksrtMenuBound === '1') return;
       menu.dataset.aksrtMenuBound = '1';
       var trigger = menu.querySelector('.aksrt-cover-menu__trigger');
@@ -320,34 +336,54 @@
       }
       trigger.addEventListener('click', function () { panel.hidden ? open() : close(); });
       menu.addEventListener('keydown', function (event) { if (event.key === 'Escape') { close(); trigger.focus(); } });
-      document.addEventListener('pointerdown', function (event) { if (!menu.contains(event.target)) close(); });
     });
   }
 
-  function initProfileDetailsModal() {
-    var modal = document.getElementById('aksrt-profile-details-modal');
-    if (!modal) return;
+  function initProfileDetailsModal(root) {
+    var modal = elementById(root, 'aksrt-profile-details-modal');
+    if (!modal || modal.dataset.aksrtProfileModalBound === '1') return;
+    modal.dataset.aksrtProfileModalBound = '1';
     var dialog = modal.querySelector('.aksrt-profile-details-modal__dialog');
     var returnFocus = null;
     function close() { modal.hidden = true; if (returnFocus) returnFocus.focus(); }
-    document.querySelectorAll('[data-aksrt-profile-details]').forEach(function (button) {
+    elementsIn(root, '[data-aksrt-profile-details]').forEach(function (button) {
       button.addEventListener('click', function () { returnFocus = button; modal.hidden = false; if (dialog) dialog.focus(); });
     });
     modal.querySelectorAll('[data-aksrt-modal-close]').forEach(function (button) { button.addEventListener('click', close); });
-    document.addEventListener('keydown', function (event) { if (event.key === 'Escape' && !modal.hidden) close(); });
   }
 
-  function init() {
-    initPublicDashboards();
-    initCoverMenus();
-    initProfileDetailsModal();
-    initCoverUpload();
-    initAvatarUpload();
+  function initGlobalEvents() {
+    if (globalEventsBound) return;
+    globalEventsBound = true;
+    document.addEventListener('pointerdown', function (event) {
+      document.querySelectorAll('[data-aksrt-menu]').forEach(function (menu) {
+        if (menu.contains(event.target)) return;
+        var panel = menu.querySelector('.aksrt-cover-menu__panel');
+        var trigger = menu.querySelector('.aksrt-cover-menu__trigger');
+        if (panel) panel.hidden = true;
+        if (trigger) trigger.setAttribute('aria-expanded', 'false');
+      });
+    });
+    document.addEventListener('keydown', function (event) {
+      if (event.key !== 'Escape') return;
+      var modal = document.getElementById('aksrt-profile-details-modal');
+      if (modal && !modal.hidden) {
+        var close = modal.querySelector('[data-aksrt-modal-close]');
+        if (close) close.click();
+      }
+    });
   }
 
-  if (document.readyState === 'loading') {
-    document.addEventListener('DOMContentLoaded', init);
-  } else {
-    init();
+  function init(root) {
+    initGlobalEvents();
+    initPublicDashboards(root);
+    initCoverMenus(root);
+    initProfileDetailsModal(root);
+    initCoverUpload(root);
+    initAvatarUpload(root);
+  }
+
+  if (window.AksrtFrontend && typeof window.AksrtFrontend.register === 'function') {
+    window.AksrtFrontend.register('aksrt-author', init);
   }
 })();