feat(web): include removed in visible stats; cover bang badge

站内展示/统计统一 VISIBLE（含 removed）：热度、UP 列表、总览
active_ups/初导入计数、说明页粉丝覆盖、黑名单视频数。采集队列仍
只 active/unfaved。失效片封面右上角感叹号徽标，点击/tap 提示
「该视频已失效」；手动/候选入库仍可复活 removed→active。

reaction_board/web/static/app.js

@@ -134,6 +134,15 @@ function toast(message, kind = "info") {
   }, 2600);
 }
 
+
+document.addEventListener("click", (event) => {
+  const mark = event.target.closest("[data-removed-tip]");
+  if (!mark) return;
+  event.preventDefault();
+  event.stopPropagation();
+  toast("该视频已失效");
+}, true);
+
 window.addEventListener("error", (event) => {
   const target = event.target;
   if (target instanceof HTMLImageElement) {