feat(widgets): simplify locations and paid sidebar

Remove deprecated widget locations and widgets, standardize sidebar labels, and render a compact paid-post purchase card in the article sidebar.

assets/js/effects.js

@@ -95,44 +95,6 @@
     setInterval(update, 1000);
   }
 
-  /* ============================================================
-   * 3. 合作伙伴无缝滚动 (marquee)
-   *    用法：<div class="aksrt-marquee" data-speed="1">...内容...</div>
-   * ============================================================ */
-  function initMarquee() {
-    document.querySelectorAll('.aksrt-marquee').forEach(function (el) {
-      if (el.dataset.marqueeBound) return;
-      el.dataset.marqueeBound = '1';
-
-      var speed = parseFloat(el.dataset.speed || '1');
-      var inner = el.querySelector('.aksrt-marquee__inner') || el.children[0];
-      if (!inner) return;
-
-      // 克隆内容实现无缝
-      var clone = inner.cloneNode(true);
-      el.appendChild(clone);
-
-      var pos = 0;
-      var width = inner.scrollWidth;
-
-      function animate() {
-        pos -= speed;
-        if (Math.abs(pos) >= width) pos = 0;
-        inner.style.transform = 'translateX(' + pos + 'px)';
-        clone.style.transform = 'translateX(' + (pos + width) + 'px)';
-        if (!reducedMotion) requestAnimationFrame(animate);
-      }
-
-      if (!reducedMotion) {
-        requestAnimationFrame(animate);
-      }
-
-      // 暂停/恢复
-      el.addEventListener('mouseenter', function () { el.dataset.paused = '1'; });
-      el.addEventListener('mouseleave', function () { delete el.dataset.paused; });
-    });
-  }
-
   /* ============================================================
    * 4. 3D 悬停倾斜 (vanilla tilt)
    *    用法：<div data-aksrt-tilt data-tilt-max="15">...</div>