fix(runtime): 按参考主题硬切换为 loader/main/auto_fun 单一 DOM 生命周期

- 删除 AksrtFrontend registry/rehydrate 双路架构及 build/public.js 拼包入口，
  前台唯一初始路径为 PHP 本地栈（jQuery 1.9.1 → Bootstrap 3.4.1）
  → loader_js（_win/aksrtData 唯一注入）→ tbquire(['main']) → runtime/main.min.js
- window.auto_fun = debounce(z_auto_fun, 100) 为唯一重扫入口；所有模块改为
  执行一次 + off/on('auto_fun.aksrt-*') 命名空间重扫，data/class 标记幂等
- 局部更新协议统一：HTML 注入 → post_ajax.ed → auto_fun()；
  远程 modal → loaded.bs.modal → auto_fun()；JSON 成功 → zib_ajax.success
- 灯箱恢复 Miniimgbox/imgbox 唯一 owner（imgbox-container、a[data-imgbox]、
  imgbox_data），删除 AksrtLightbox/data-aksrt-lightbox 第二实现及 CSS/overlay，
  _win.imgbox* 重新接上 post-display 设置
- 死代码清理：runtime 下 11 组被自有实现替代的旧模块副本、无消费 vendored 库、
  顶层 grade.min.js、revenue.js、无调用方的 aksrt_get_win_runtime_config()，
  以及 loader 中 16 条死 mapping
- PHP 入队改为本地栈 + loader_js，routed/widget/submit 依赖统一换绑；
  用户卡片发布按钮恢复 nav_user_newposts_btn 设置门控
- 测试对齐：新增 frontend-lifecycle-contract，重写 navigation/lazyload/toast/
  auth-source/comment/page-display/post-visual 等断言为目标架构契约

验证：node --test widget-system+navigation 223 通过 0 失败；
构建脚本重建 main/imgbox min 与 CSS bundles；改动 PHP php -l、JS node --check
全部通过；git diff --check 干净；credits 重入 harness 通过。

tests/widget-system/post-visual-contract.test.cjs

@@ -323,7 +323,8 @@ test('AJAX pagination can recover, caps auto loading and rehydrates appended med
   assert.match(admin, /\$query_vars\['paged'\] = \$page/);
   assert.match(js, /failed = false;\s*loadNextPage\(fromAuto\)/);
   assert.match(js, /successfulAutoLoads >= iasMax/);
-  assert.match(js, /AksrtFrontend\.rehydrate\(target, "ajax"\)/);
+  assert.match(js, /post_ajax\.ed/);
+  assert.match(js, /window\.auto_fun\(\)/);
   assert.match(js, /classList\.add\("lazyload"\)/);
   assert.match(homepage, /aksrt_render_pagination\(\$query,[\s\S]*?'query_context'\s*=>\s*\$contract\['query_context'\]/);
   assert.doesNotMatch(homepage, /href="javascript:;" class="ajax-next aksrt-load-more-btn"/);
@@ -335,7 +336,7 @@ test('AJAX pagination can recover, caps auto loading and rehydrates appended med
   assert.match(media, /window\.Grade\(container/);
   assert.match(media, /linear-gradient\(135deg/);
   assert.match(media, /aksrtGradientState/);
-  assert.match(read('tools/build-public-assets.mjs'), /assets\/js\/grade\.min\.js/);
+  assert.match(read('assets/js/runtime/main.js'), /tbquire\(\['grade'\]/);
 });
 
 test('front-end carousel CSS is conditional on carousel block content', () => {
@@ -490,7 +491,8 @@ test('public user home stays param-free and swaps panels via REST fragments', ()
   assert.doesNotMatch(authorJs, /searchParams|pushState|replaceState/);
   assert.match(authorJs, /\/user-home\/panel\/' \+ userId \+ '/);
   assert.match(authorJs, /data-uh-sub/);
-  assert.match(authorJs, /AksrtFrontend\.rehydrate\(panel, 'ajax'\)/);
+  assert.match(authorJs, /post_ajax\.ed/);
+  assert.match(authorJs, /window\.auto_fun\(\)/);
 });
 
 test('single articles enqueue only content and settings driven assets', () => {
@@ -565,7 +567,7 @@ test('single post more menu has one accessible runtime and an in-flow author anc
   assert.match(article, /setAttribute\("aria-expanded", open \? "true" : "false"\)/);
   assert.match(article, /setAttribute\("aria-hidden", open \? "false" : "true"\)/);
   assert.match(article, /event\.key === "Escape"/);
-  assert.match(article, /window\.AksrtFrontend\.register\("aksrt-post-meta-menus"/);
+  assert.match(article, /jQuery\(document\)\.off\(.*auto_fun/);
   assert.doesNotMatch(components + article, /data-toggle=["']dropdown|\.dropdown\(/);
 
   assert.match(components, /\$menu_id = 'post-drop-meta-menu-' \. \$post_id/);