feat: 运营-用户功能四大需求完整实现

1. 客资中心：Dashboard 聚合 CKB 线索+提交记录，联表用户信息
2. @置顶：Person 三端（后端+管理端+小程序）置顶功能，首页优先展示
3. 存客宝场景：一键检查并自动启用所有场景获客计划
4. 去重增强：后端聚合 dupCount，管理端展示重复标记和统计
5. 首页文案："最新更新"→"推荐"，"开始阅读"→"点击阅读"

Made-with: Cursor

miniprogram/pages/index/index.wxss

@@ -634,10 +634,11 @@
   gap: 10rpx;
 }
 .super-avatar {
+  position: relative;
   width: 108rpx;
   height: 108rpx;
   border-radius: 50%;
-  overflow: hidden;
+  overflow: visible;
   background: rgba(0,206,209,0.1);
   display: flex;
   align-items: center;
@@ -648,10 +649,33 @@
   border: 3rpx solid #FFD700;
   box-shadow: 0 0 12rpx rgba(255,215,0,0.3);
 }
+.super-avatar-pinned {
+  border: 3rpx solid #38bdac;
+  box-shadow: 0 0 16rpx rgba(56, 189, 172, 0.4);
+}
+.super-item-pinned .super-name {
+  color: #38bdac;
+}
+.pinned-badge {
+  position: absolute;
+  bottom: -4rpx;
+  right: -4rpx;
+  width: 28rpx;
+  height: 28rpx;
+  background: #38bdac;
+  border-radius: 50%;
+  font-size: 18rpx;
+  color: #fff;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  line-height: 1;
+}
 .super-avatar-img {
   width: 100%;
   height: 100%;
   object-fit: cover;
+  border-radius: 50%;
 }
 .super-avatar-text {
   font-size: 40rpx;