fix: address code review feedback on node replacement

- Add error toast in replaceNodesInPlace for user-visible failure
  feedback, returning empty array on error instead of throwing
- Guard removeMissingNodesByType behind replacement success check
  (replaced.length > 0) to prevent stale error list updates
- Sort buildMissingNodeGroups by priority for deterministic UI order
  (Swap Nodes 0 → Missing Node Packs 1 → Execution Errors)
- Add aux_id fallback and cnr_id precedence tests for getCnrIdFromNode
- Split replaceAllWarning from replaceWarning to fix i18n key mismatch
  between TabErrors tooltip and MissingNodesContent dialog

src/components/rightSidePanel/errors/SwapNodeGroupRow.vue

@@ -142,7 +142,9 @@ function handleLocateNode(nodeType: MissingNodeType) {
 }
 
 function handleReplaceNode() {
-  replaceNodesInPlace(props.group.nodeTypes)
-  executionErrorStore.removeMissingNodesByType([props.group.type])
+  const replaced = replaceNodesInPlace(props.group.nodeTypes)
+  if (replaced.length > 0) {
+    executionErrorStore.removeMissingNodesByType([props.group.type])
+  }
 }
 </script>

src/components/rightSidePanel/errors/TabErrors.vue

@@ -267,9 +267,11 @@ function handleOpenManagerInfo(packId: string) {
 
 function handleReplaceAll(swapNodeGroups: SwapNodeGroup[]) {
   const allNodeTypes = swapNodeGroups.flatMap((g) => g.nodeTypes)
-  replaceNodesInPlace(allNodeTypes)
-  const typesToRemove = swapNodeGroups.map((g) => g.type)
-  executionErrorStore.removeMissingNodesByType(typesToRemove)
+  const replaced = replaceNodesInPlace(allNodeTypes)
+  if (replaced.length > 0) {
+    const typesToRemove = swapNodeGroups.map((g) => g.type)
+    executionErrorStore.removeMissingNodesByType(typesToRemove)
+  }
 }
 
 function handleEnterSubgraph(nodeId: string) {

src/components/rightSidePanel/errors/useErrorGroups.ts

@@ -537,7 +537,7 @@ export function useErrorGroups(
       groups.push({
         type: 'swap_nodes' as const,
         title: 'Swap Nodes',
-        priority: 1
+        priority: 0
       })
     }
 
@@ -545,11 +545,11 @@ export function useErrorGroups(
       groups.push({
         type: 'missing_node' as const,
         title: error.message,
-        priority: 0
+        priority: 1
       })
     }
 
-    return groups
+    return groups.sort((a, b) => a.priority - b.priority)
   }
 
   const allErrorGroups = computed<ErrorGroup[]>(() => {

src/platform/nodeReplacement/useNodeReplacement.ts

@@ -283,6 +283,15 @@ export function useNodeReplacement() {
           life: 3000
         })
       }
+    } catch (error) {
+      console.error('Failed to replace nodes:', error)
+      toastStore.add({
+        severity: 'error',
+        summary: t('g.error', 'Error'),
+        detail: t('nodeReplacement.replaceFailed', 'Failed to replace nodes'),
+        life: 5000
+      })
+      return []
     } finally {
       changeTracker?.afterChange()
     }

src/workbench/extensions/manager/utils/missingNodeErrorUtil.test.ts

@@ -49,6 +49,20 @@ describe('getCnrIdFromNode', () => {
     expect(getCnrIdFromNode(node)).toBe('node-pack')
   })
 
+  it('returns aux_id when cnr_id is absent', () => {
+    const node = {
+      properties: { aux_id: 'node-aux-pack' }
+    } as unknown as LGraphNode
+    expect(getCnrIdFromNode(node)).toBe('node-aux-pack')
+  })
+
+  it('prefers cnr_id over aux_id in node properties', () => {
+    const node = {
+      properties: { cnr_id: 'primary', aux_id: 'secondary' }
+    } as unknown as LGraphNode
+    expect(getCnrIdFromNode(node)).toBe('primary')
+  })
+
   it('returns undefined when node has no cnr_id or aux_id', () => {
     const node = { properties: {} } as unknown as LGraphNode
     expect(getCnrIdFromNode(node)).toBeUndefined()