fix: map route list cards from waypointCount only

List API never returns waypoints[]; drop the dead array branch and
read waypointCount directly.

src/views/TasksView/TasksView.vue

@@ -502,28 +502,16 @@ async function load() {
       return toExecutionRecord(r, taskNames.get(r.taskId), '', video ? { id: String(video.id), status: video.status } : null)
     })
 
-    routes.value = (routePage?.records || []).map((r, i) => {
-      // 列表接口返回 waypointCount，不含 waypoints[]；详情才有完整航点
-      const count = Number(r.waypointCount ?? r.waypoint_count)
-      const fromList = Array.isArray(r.waypoints) ? r.waypoints.length : NaN
-      const waypoints = Number.isFinite(fromList)
-        ? fromList
-        : (Number.isFinite(count) ? count : 0)
-      const distance = Array.isArray(r.waypoints) && r.waypoints.length
-        ? `${routeDistance(r.waypoints.map((p) => ({
-            longitude: Number(p.longitude),
-            latitude: Number(p.latitude),
-          }))).toFixed(1)} km`
-        : (r.distance || '--')
-      return {
-        id: String(r.id),
-        name: r.name,
-        waypoints,
-        distance,
-        collectedAt: fmtTime(r.createdAt),
-        mapClass: i % 2 === 0 ? 'route-a' : 'route-c',
-      }
-    })
+    routes.value = (routePage?.records || []).map((r, i) => ({
+      id: String(r.id),
+      name: r.name,
+      // 列表只返回 waypointCount，不含 waypoints[]
+      waypoints: Number(r.waypointCount) || 0,
+      // 列表无航点坐标，距离只能详情后算；卡片暂显 --
+      distance: '--',
+      collectedAt: fmtTime(r.createdAt),
+      mapClass: i % 2 === 0 ? 'route-a' : 'route-c',
+    }))
     const hasActiveExecution = (execPage?.records || []).some((r) => ['pending', 'running'].includes(r.status))
     if (hasActiveExecution && !refreshTimer) refreshTimer = window.setInterval(load, 5000)
     if (!hasActiveExecution && refreshTimer) {