fix: fit route editor map to waypoints on edit

Route points were synced into Mapbox sources, but the shared map
camera stayed on the overview, so edited routes looked missing.

src/views/TasksView/TasksView.vue

@@ -244,6 +244,7 @@ import { useDeviceStore } from '@/stores/modules/devicesStore'
 import * as urls from '@/config/urls'
 import commonRefs from '@/utils/commonRefs'
 import mapHelper from '@/core/mapHelper'
+import mapboxgl from 'mapbox-gl'
 import RouteCard from '@/components/RouteCard.vue'
 
 const ROUTE_SOURCE = 'task-route'
@@ -286,6 +287,7 @@ const routeMapReady = ref(false)
 let routeMapInstance = null
 let routeMapAttached = false
 let pendingStyleHandler = null
+let pendingFitRoute = false
 
 const routeForm = reactive({ name: '', altitude: 50, speed: 10, turnMode: 'auto' })
 const routePoints = ref([])
@@ -638,7 +640,7 @@ function ensureTaskLayers(map) {
   return true
 }
 
-function syncRouteLayer() {
+function syncRouteLayer({ fit = false } = {}) {
   if (!routeMapInstance || !routeMapInstance.isStyleLoaded()) return
   if (!ensureTaskLayers(routeMapInstance)) return
   const coords = routePoints.value
@@ -669,6 +671,25 @@ function syncRouteLayer() {
   }
   routeMapInstance.getSource(ROUTE_SOURCE)?.setData(lineData)
   routeMapInstance.getSource(WP_SOURCE)?.setData(wpData)
+
+  if (fit && coords.length) fitRouteInView(coords)
+}
+
+function fitRouteInView(coords) {
+  if (!routeMapInstance || !coords?.length) return
+  if (coords.length === 1) {
+    routeMapInstance.easeTo({
+      center: coords[0],
+      zoom: Math.max(routeMapInstance.getZoom(), 16),
+      duration: 400,
+    })
+    return
+  }
+  const bounds = coords.reduce(
+    (b, c) => b.extend(c),
+    new mapboxgl.LngLatBounds(coords[0], coords[0]),
+  )
+  routeMapInstance.fitBounds(bounds, { padding: 80, duration: 400, maxZoom: 17 })
 }
 
 function onRouteMapClick(e) {
@@ -729,7 +750,9 @@ async function attachRouteMap() {
     routeMapReady.value = true
     requestAnimationFrame(() => {
       map.resize()
-      syncRouteLayer()
+      const shouldFit = pendingFitRoute
+      pendingFitRoute = false
+      syncRouteLayer({ fit: shouldFit })
     })
   }
 
@@ -757,6 +780,7 @@ function teardownRouteMap() {
   }
   routeMapInstance = null
   routeMapReady.value = false
+  pendingFitRoute = false
 }
 
 function openRouteEditor() {
@@ -787,10 +811,11 @@ async function openRouteEditorForEdit(route) {
       speed: first ? first.speed : 10,
       turnMode: first ? first.turnMode : 'auto',
     })
+    pendingFitRoute = routePoints.value.length > 0
     routeEditorOpen.value = true
     await attachRouteMap()
-    // boot already syncs; optional extra if ready:
-    if (routeMapReady.value) syncRouteLayer()
+    // boot already syncs+fits when pendingFitRoute; ready 兜底再 fit 一次
+    if (routeMapReady.value) syncRouteLayer({ fit: routePoints.value.length > 0 })
   } catch (e) {
     ui.toast(e.message || '加载航线详情失败')
   }