feat:任务大纲编排初始流程单个节点和分支删除

frontend/src/layout/components/Main/TaskTemplate/TaskSyllabus/Branch/PlanModification.vue

@@ -781,10 +781,8 @@ const confirmDeleteBranch = async () => {
     return
   }
 
-  // 2. 从nodes中删除该分支的所有节点（排除根节点和主流程节点）
-  const branchNodeIds = branchToDelete.nodes
-    .filter(n => n.id !== 'root-goal' && !n.id.startsWith('task-'))
-    .map(n => n.id)
+  // 2. 从nodes中删除该分支的所有节点（排除根节点）
+  const branchNodeIds = branchToDelete.nodes.filter(n => n.id !== 'root-goal').map(n => n.id)
 
   nodes.value = nodes.value.filter(n => !branchNodeIds.includes(n.id))
 
@@ -836,9 +834,7 @@ const confirmDeleteNode = async () => {
   const allBranches = selectionStore.getAllFlowBranches()
   const childBranchIdMap: Record<string, string> = {}
   outgoingEdges.forEach(outEdge => {
-    const childBranch = allBranches.find(branch =>
-      branch.nodes.some(n => n.id === outEdge.target)
-    )
+    const childBranch = allBranches.find(branch => branch.nodes.some(n => n.id === outEdge.target))
     if (childBranch) {
       childBranchIdMap[outEdge.target] = childBranch.id
     }

frontend/src/layout/components/Main/TaskTemplate/TaskSyllabus/Branch/components/TaskNode.vue

@@ -395,7 +395,7 @@ const isDeletable = computed(() => props.isDeletable || false)
 
   // 左侧位置
   &.left {
-    left: -100px;
+    left: -50px;
     top: 50%;
     transform: translateY(-50%);
   }