diff --git a/web/e2e/tickets.mjs b/web/e2e/tickets.mjs
index 7aa185b..38e6db2 100644
--- a/web/e2e/tickets.mjs
+++ b/web/e2e/tickets.mjs
@@ -78,8 +78,9 @@ if (process.env.DEBUG_NET) {
 }
 
 const stamp = String(Date.now()).slice(-8);
+// 两个号后四位必须不同：昵称是"用户{后4位}"，撞号会让截图里需求人和办理人看着像同一个人
 const phoneA = `137${stamp}`;
-const phoneB = `136${stamp}`;
+const phoneB = `136${String((Number(stamp) + 1111) % 100000000).padStart(8, "0")}`;
 
 try {
   // 1. A 登录并建工作区
diff --git a/web/src/components/TaskDetail.tsx b/web/src/components/TaskDetail.tsx
index 2bf83d1..519ce70 100644
--- a/web/src/components/TaskDetail.tsx
+++ b/web/src/components/TaskDetail.tsx
@@ -286,9 +286,12 @@ export function TaskDetail({
                 {STATUS_LABEL[item.status]} · 版本 {item.version}
               </span>
               <div className="flex gap-2">
-                <button className="btn-ghost px-2 py-1 text-xs text-red-600" onClick={() => void remove()}>
-                  删除
-                </button>
+                {/* 工单不提供删除：它该走"取消"，否则原任务永远解不开 */}
+                {item.kind !== "ticket" && (
+                  <button className="btn-ghost px-2 py-1 text-xs text-red-600" onClick={() => void remove()}>
+                    删除
+                  </button>
+                )}
                 <button className="btn-ghost px-2 py-1 text-xs" onClick={onClose}>
                   关闭
                 </button>