fix: fix error overlay and TabErrors filtering for nested subgraphs (#9129)

## Summary

Fix error overlays not showing on subgraph container nodes and nested
error cards not appearing in the Errors tab when a node inside a
subgraph fails.

## Changes

- **What**: Error overlay and Errors tab filtering now use full
hierarchical execution IDs (e.g. `65:70`) instead of local node IDs,
enabling correct ancestor detection at any nesting depth
- Added `getExecutionIdByNode` to
[graphTraversalUtil.ts](src/utils/graphTraversalUtil.ts) to compute a
node's full execution ID chain from the root graph
- Added `errorAncestorExecutionIds` computed set and
`isContainerWithInternalError(node)` helper to
[executionErrorStore.ts](src/stores/executionErrorStore.ts) for O(1)
container checks
- Updated `hasAnyError` in
[LGraphNode.vue](src/extensions/vueNodes/components/LGraphNode.vue) to
use the new store helper
- Fixed `isErrorInSelection` in
[useErrorGroups.ts](src/components/rightSidePanel/errors/useErrorGroups.ts)
to use full execution IDs for selected containers

## Review Focus

- `errorAncestorExecutionIds` is rebuilt reactively whenever the active
errors change — confirm this is efficient enough given typical error
counts
- `getExecutionIdByNode` walks up the graph hierarchy; verify the base
case (root graph, no parent) is handled correctly

## Screenshots


https://github.com/user-attachments/assets/b5be5892-80a9-4e5e-8b6f-fe754b4ebc4e



https://github.com/user-attachments/assets/92ff12b3-3bc9-4f02-ba4a-e2c7384bafe5



https://github.com/user-attachments/assets/be8e95be-ac8c-4699-9be9-b11902294bda



┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9129-fix-fix-error-overlay-and-TabErrors-filtering-for-nested-subgraphs-3106d73d365081c1875bc1a3c89eae29)
by [Unito](https://www.unito.io)

src/components/rightSidePanel/RightSidePanel.vue

@@ -106,7 +106,7 @@ const hasContainerInternalError = computed(() => {
   if (allErrorExecutionIds.value.length === 0) return false
   return selectedNodes.value.some((node) => {
     if (!(node instanceof SubgraphNode || isGroupNode(node))) return false
-    return executionErrorStore.hasInternalErrorForNode(node.id)
+    return executionErrorStore.isContainerWithInternalError(node)
   })
 })
 

src/components/rightSidePanel/errors/useErrorGroups.ts

@@ -13,6 +13,7 @@ import type { LGraphNode } from '@/lib/litegraph/src/litegraph'
 
 import {
   getNodeByExecutionId,
+  getExecutionIdByNode,
   getRootParentNode
 } from '@/utils/graphTraversalUtil'
 import { resolveNodeDisplayName } from '@/utils/nodeTitleUtil'
@@ -20,6 +21,7 @@ import { isLGraphNode } from '@/utils/litegraphUtil'
 import { isGroupNode } from '@/utils/executableGroupNodeDto'
 import { st } from '@/i18n'
 import type { ErrorCardData, ErrorGroup, ErrorItem } from './types'
+import type { NodeExecutionId } from '@/types/nodeIdentification'
 import { isNodeExecutionId } from '@/types/nodeIdentification'
 
 const PROMPT_CARD_ID = '__prompt__'
@@ -200,26 +202,30 @@ export function useErrorGroups(
   const selectedNodeInfo = computed(() => {
     const items = canvasStore.selectedItems
     const nodeIds = new Set<string>()
-    const containerIds = new Set<string>()
+    const containerExecutionIds = new Set<NodeExecutionId>()
 
     for (const item of items) {
       if (!isLGraphNode(item)) continue
       nodeIds.add(String(item.id))
-      if (item instanceof SubgraphNode || isGroupNode(item)) {
-        containerIds.add(String(item.id))
+      if (
+        (item instanceof SubgraphNode || isGroupNode(item)) &&
+        app.rootGraph
+      ) {
+        const execId = getExecutionIdByNode(app.rootGraph, item)
+        if (execId) containerExecutionIds.add(execId)
       }
     }
 
     return {
       nodeIds: nodeIds.size > 0 ? nodeIds : null,
-      containerIds
+      containerExecutionIds
     }
   })
 
   const isSingleNodeSelected = computed(
     () =>
       selectedNodeInfo.value.nodeIds?.size === 1 &&
-      selectedNodeInfo.value.containerIds.size === 0
+      selectedNodeInfo.value.containerExecutionIds.size === 0
   )
 
   const errorNodeCache = computed(() => {
@@ -238,8 +244,9 @@ export function useErrorGroups(
     const graphNode = errorNodeCache.value.get(executionNodeId)
     if (graphNode && nodeIds.has(String(graphNode.id))) return true
 
-    for (const containerId of selectedNodeInfo.value.containerIds) {
-      if (executionNodeId.startsWith(`${containerId}:`)) return true
+    for (const containerExecId of selectedNodeInfo.value
+      .containerExecutionIds) {
+      if (executionNodeId.startsWith(`${containerExecId}:`)) return true
     }
 
     return false

src/components/rightSidePanel/parameters/SectionWidgets.vue

@@ -121,7 +121,7 @@ const hasContainerInternalError = computed(() => {
     targetNode.value instanceof SubgraphNode || isGroupNode(targetNode.value)
   if (!isContainer) return false
 
-  return executionErrorStore.hasInternalErrorForNode(targetNode.value.id)
+  return executionErrorStore.isContainerWithInternalError(targetNode.value)
 })
 
 const nodeHasError = computed(() => {