feat(workspace): 画布 2D/3D 切换与车辆相机跟随

- workspaceToolbar API 新增 view/toggle 与 camera/follow
- 画布底栏新增 2D/3D 切换、自动跟随按钮，组件卸载时自动停止跟随
- 地图监控页将选中车辆 id 透传给底栏，并接入监控配置缓存

Co-authored-by: Cursor <cursoragent@cursor.com>

frontends/apps/simple-platform-vue/src/views/admin/MapMonitorView.vue

@@ -29,7 +29,7 @@
             @ready="onWorkspaceReady"
           />
           <FloatingAlarmStack :alarms="alarms" @locate="onAlarmLocate" @ack="onAlarmAck" />
-          <WorkspaceCanvasToolbar />
+          <WorkspaceCanvasToolbar :follow-car-id="selectedFollowCarId" />
         </div>
       </el-col>
       <el-col :span="8" class="side-col">
@@ -95,6 +95,7 @@ import type { Car } from '@/types/car'
 import type { Mission } from '@/types/mission'
 import type { DeliveryTask } from '@/types/delivery'
 import type { SelectedObjectRef } from '@/types/workbench'
+import { fetchMonitorConfigCached, invalidateMonitorConfigCache } from '@/utils/monitorConfigCache'
 
 defineProps<{
   /** 只读模式（运营端复用 MapMonitorView 时传 true）：3D 不可编辑，选中信息面板动作改用运维白名单。 */
@@ -167,6 +168,21 @@ const selectedVehicleId = computed(() => {
   return match?.id ?? null
 })
 
+/** 供底栏「自动跟随」使用的车辆 numeric id（与 reflection setSelection 一致）。 */
+const selectedFollowCarId = computed(() => {
+  if (!selection.value || selection.value.kind !== 'vehicle') return null
+  const sid = selection.value.id
+  const n = Number(sid)
+  if (Number.isFinite(n)) return n
+  const match = cars.value.find((c) => c.id === sid || detailIdForCar(c) === sid)
+  if (match?.rawId != null) return match.rawId
+  if (match) {
+    const parsed = Number(detailIdForCar(match))
+    if (Number.isFinite(parsed)) return parsed
+  }
+  return null
+})
+
 function onPick(_p: { x: number; y: number }) { /* 坐标由 3D 选中对象驱动 */ }
 
 // SimpleLite 3D 端发送的对象命名规则（见 SimpleUI.cs / UISite.cs / TrackUiHelper）：
@@ -220,7 +236,6 @@ function applyParsedSelection(parsed: { kind: 'vehicle' | 'site' | 'track'; id:
   }
   if (sameSelection(selection.value, next)) return
   selection.value = next
-  tick.value++
 }
 
 function applySelectionFromKindId(kind: 'site' | 'track' | 'car', id: number, names?: readonly string[]) {
@@ -234,7 +249,6 @@ function applySelectionFromKindId(kind: 'site' | 'track' | 'car', id: number, na
       : { kind: 'vehicle' as const, id: sid, name: `Vehicle ${sid}` }
     if (!sameSelection(selection.value, next)) {
       selection.value = next
-      tick.value++
     }
     return
   }
@@ -250,7 +264,6 @@ function applySelectionFromKindId(kind: 'site' | 'track' | 'car', id: number, na
   }
   if (!sameSelection(selection.value, next)) {
     selection.value = next
-    tick.value++
   }
 }
 
@@ -265,7 +278,6 @@ function onSelectionDetailFromStream(e: SelectionDetailEvent) {
   const nameN = Array.isArray(e.names) ? e.names.length : 0
   if (siteN + trackN + carN + nameN === 0) {
     selection.value = null
-    tick.value++
     return
   }
 
@@ -333,7 +345,6 @@ async function onVehicleSelect(ref: SelectedObjectRef) {
   selectedDeliveryId.value = null
   if (!sameSelection(selection.value, ref)) {
     selection.value = ref
-    tick.value++
   }
   const id = Number(ref.id)
   if (!Number.isFinite(id)) return
@@ -359,7 +370,6 @@ async function onDeliverySelect(task: DeliveryTask) {
         id: String(task.carId),
         name: task.carName ?? `Vehicle ${task.carId}`
       }
-      tick.value++
     } catch (err) {
       ElMessage.error(`同步 3D 选中失败：${(err as Error).message}`)
     }
@@ -370,7 +380,6 @@ async function onDeliverySelect(task: DeliveryTask) {
     id: String(task.id),
     name: `${task.srcLabel} → ${task.dstLabel}`
   }
-  tick.value++
 }
 
 function onDeliveryListRefresh(opts: { includeFinished: boolean; includeAborted: boolean }) {
@@ -416,7 +425,6 @@ async function refreshAll() {
   } catch (err) {
     console.warn('[MapMonitor] refreshAll failed', err)
   } finally {
-    tick.value++
     refreshing.value = false
   }
 }
@@ -456,7 +464,8 @@ function onStreamEvent(e: StreamEvent) {
       }
       break
     case 'monitor-config-updated':
-      // 运营维护保存后 SimpleLite 广播，刷新选中面板动作列表
+      // 运营维护保存后刷新动作白名单（勿在 refreshAll 里 tick++，避免轮询导致选中面板反复重载）
+      invalidateMonitorConfigCache()
       tick.value++
       break
     // 'snapshot-tick' 故意不触发 refreshAll —— 见上面注释。
@@ -465,6 +474,7 @@ function onStreamEvent(e: StreamEvent) {
 stream.on(onStreamEvent)
 
 onMounted(async () => {
+  void fetchMonitorConfigCached()
   await refreshAll()
   pollTimer = setInterval(() => {
     // SSE 已连但 projection/cars 曾 502 时 connected 仍为 true，需在车列表为空时继续轮询
@@ -492,14 +502,29 @@ onUnmounted(() => {
 .kpi-row { flex: none; }
 .main-row { flex: 1; min-height: 0; }
 .main-row > .el-col { display: flex; flex-direction: column; min-height: 0; }
-.side-col { gap: 12px; }
+.side-col {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+  min-height: 0;
+  height: 100%;
+}
 .side-card {
   display: flex;
   flex-direction: column;
   min-height: 0;
+  overflow: hidden;
+}
+/* 上下各占约一半，与任务列表 tab 时一致，保证「选中信息」始终可见 */
+.workbench-card {
+  flex: 1 1 0;
+  min-height: 0;
+  max-height: 52%;
+}
+.detail-card {
+  flex: 1 1 0;
+  min-height: 200px;
 }
-.workbench-card { flex: 1; min-height: 0; }
-.detail-card { flex: 1; min-height: 0; }
 .workbench-card :deep(.el-card__body),
 .detail-card :deep(.el-card__body) {
   flex: 1;