refactor(assets): vendor 资产迁入标准目录并全仓去除 zibll 标识

- assets/vendor 全量迁移: fontawesome5→assets/fontawesome5, css→assets/css,
  js→assets/js/runtime(避开 14 个同名自有文件), img 合并去重→assets/img,
  fonts→assets/fonts; 删除 assets/vendor
- libs 五个与 widgets/third-party 字节相同的库不重复入库, loader paths 改指向
- 运行时切换: _win.uri=assets 根, loader baseUrl=/js/runtime, enlighter 注入
  路径同步; PHP 7 个引用文件切换并改名 $zibll_*→$runtime_*
- 去品牌: Qinver 头注释/品牌 console.log/演示链接清除, 默认文案中性化
- 功能标识符改名: zib__→aksrt__, zib_ajax→aksrt_ajax, window.zib→
  window.aksrtLegacy, zibllblock/*→aksrtblock/*, .zib-widget→.aksrt-panel,
  .zib-slider→.aksrt-slider, zib_menu_options meta 键等
- 自有 CSS 改名: legacy-utilities/compat-vars/footer shell
- admin SPA 重建; 契约测试同步(路径/断言/文件更名)
- 例外保留: tests/visual 对照环境与 fixtures 前缀(外部 Zibll 产品引用)

验证: php -l 133 个改动文件通过; runtime 86 个 JS node --check 通过;
契约测试 68/70(2 个失败经 stash 对照确认为存量问题)

assets/js/runtime/page-navs.js

@@ -0,0 +1,46 @@
+//文章导航
+$("button[evt='action']").on("click", function (t) {
+    t = t || window.event;
+    var a = t.target || t.srcElement,
+        e = $(a),
+        n = e.parents("form"),
+        r = n.serializeObject(),
+        c = [];
+    return $("#cat-sortable-ok .sortable-cat-item").each(function () {
+        c.push($(this).attr("data-id"));
+    }), r.navs_show_cat_id = c, save_userdata(r, aksrt__("save_success"), "reload"), !1;
+});
+
+function save_userdata(b, c, d) {
+    notyf(aksrt__("processing_wait"), "load", "", "user_ajax"),
+        c = c || aksrt__("done");
+    $.ajax({
+        type: "POST",
+        url: _win.uri + '/action/post_navs.php',
+        data: b,
+        dataType: "json",
+        success: function (n) {
+            if (n.error) {
+                n.msg && notyf(n.msg, (n.error ? 'danger' : ""), "", "user_ajax");
+            } else {
+                notyf(n.msg || c, "", "", "user_ajax");
+                "reload" == d && location.reload();
+            }
+        }
+    });
+}
+
+$(document).ready(function () {
+    $("#cat-sortable").length && tbquire(["sortablejs"], function () {
+        var e = document.getElementById("cat-sortable"),
+            t = document.getElementById("cat-sortable-ok"),
+            a = {
+                group: "cat_shared",
+                multiDrag: !0,
+                chosenClass: "chosen",
+                fallbackClass: !0,
+                animation: 400
+            };
+        Sortable.create(e, a), Sortable.create(t, a);
+    });
+});