作者页接入 user-home 资源加载，并去掉 profile 中重复的 public dashboard 样式

author 归档与公开用户主页共用 author-hero，补齐 user-home CSS/body class 入队；profile/layout 仅保留本人中心样式，dashboard--public 只留在 user-home.css。

assets/css/routes/profile/layout.css

@@ -341,66 +341,6 @@
   }
 }
 
-/* 公开主页模式下的简化 dashboard */
-.dashboard--public {
-  margin-top: 24px;
-  max-width: none;
-  background: var(--surface-1);
-  border-radius: var(--radius-lg, 10px);
-  padding: 24px;
-  box-shadow: 0 1px 4px rgba(15, 23, 42, 0.04);
-  border: 1px solid var(--color-line-soft, transparent);
-}
-.dashboard--public .dashboard-tabs {
-  display: flex;
-  gap: 4px;
-  position: static;
-  background: transparent;
-  margin-bottom: 20px;
-  padding-bottom: 12px;
-  border-bottom: 2px solid var(--color-line-soft, rgba(0,0,0,0.06));
-}
-.dashboard--public .dashboard-tabs button,
-.dashboard--public .dashboard-tabs a {
-  padding: 8px 16px;
-  border-radius: 8px;
-  font-size: 14px;
-  font-weight: 500;
-  color: var(--color-ink-3);
-  background: transparent;
-  border: none;
-  cursor: pointer;
-  transition: all 0.2s ease;
-  position: relative;
-}
-.dashboard--public .dashboard-tabs button:hover,
-.dashboard--public .dashboard-tabs a:hover {
-  color: var(--color-ink);
-  background: var(--surface-2);
-}
-.dashboard--public .dashboard-tabs button.is-active,
-.dashboard--public .dashboard-tabs a.is-active {
-  color: var(--color-primary);
-  background: var(--color-primary-soft);
-  font-weight: 600;
-}
-.dashboard--public .dashboard-tabs button.is-active::after,
-.dashboard--public .dashboard-tabs a.is-active::after {
-  content: '';
-  position: absolute;
-  bottom: -14px;
-  left: 50%;
-  transform: translateX(-50%);
-  width: 24px;
-  height: 2px;
-  background: var(--color-primary);
-  border-radius: 1px;
-}
-.dashboard--public .dashboard-tabs button.is-active .dashboard-tabs__count,
-.dashboard--public .dashboard-tabs a.is-active .dashboard-tabs__count {
-  color: var(--color-primary);
-  background: var(--color-primary-soft);
-}
 
 /* ==================== 个人资料编辑表单 ==================== */
 .profile-form .widget-card {