点“关闭任务”，就会达到你要的效果：链接失效，预占释放。

apps/frontend/src/views/admin/AdminTaskDetailView.vue

@@ -35,7 +35,20 @@ const manualDispatchForm = reactive({
 })
 const canOperateTasks = computed(() => hasAdminRole('operator'))
 const canViewSensitiveTaskData = computed(() => Boolean(detail.value?.operations.canViewSensitiveTaskData))
-const claimUrl = computed(() => lastClaimUrl.value || detail.value?.claimToken?.claimUrl || '')
+const claimUrl = computed(() => {
+  const tokenStatus = String(detail.value?.claimToken?.status || '').trim()
+  const taskStatus = String(detail.value?.task.status || '').trim()
+
+  if (tokenStatus !== 'active' || ['closed', 'expired'].includes(taskStatus)) {
+    return ''
+  }
+
+  return lastClaimUrl.value || detail.value?.claimToken?.claimUrl || ''
+})
+const claimLinkInvalid = computed(() => {
+  const tokenStatus = String(detail.value?.claimToken?.status || '').trim()
+  return Boolean(detail.value?.claimToken?.claimUrl) && tokenStatus && tokenStatus !== 'active'
+})
 const screenshotSectionTitle = computed(() => {
   if (detail.value?.task.status === 'redeemed') {
     return '结果截图'
@@ -286,6 +299,7 @@ onBeforeUnmount(clearScreenshotPreview)
           领取链接：
           <a class="claim-link" :href="claimUrl" target="_blank" rel="noreferrer">{{ claimUrl }}</a>
         </p>
+        <p v-else-if="claimLinkInvalid">领取链接：已失效</p>
       </section>
 
       <section class="action-row">
@@ -394,6 +408,7 @@ onBeforeUnmount(clearScreenshotPreview)
               <th>领取链接</th>
               <td>
                 <a v-if="claimUrl" class="claim-link" :href="claimUrl" target="_blank" rel="noreferrer">{{ claimUrl }}</a>
+                <span v-else-if="claimLinkInvalid">已失效</span>
                 <span v-else>-</span>
               </td>
             </tr>