fix: Show title, inputs, and outputs on Vue node component even when node fails to initalize (e.g., if missing) (#5540)

* add missing node error border

* update vue node data after configure

* [refactor] extract node type resolution to named const - addresses @DrJKL's readability concern

Extracted the multi-fallback type resolution logic into a clearly named
variable for improved readability and maintainability.

* [refactor] convert watch to computed pattern - addresses @DrJKL's structure comment

Replaced ref + watch pattern with computed for displayTitle, providing cleaner
reactive behavior and eliminating the need for manual sync logic.

src/renderer/extensions/vueNodes/components/NodeHeader.vue

@@ -36,7 +36,7 @@
 </template>
 
 <script setup lang="ts">
-import { computed, onErrorCaptured, ref, watch } from 'vue'
+import { computed, onErrorCaptured, ref } from 'vue'
 
 import EditableText from '@/components/common/EditableText.vue'
 import type { VueNodeData } from '@/composables/graph/useGraphNodeManager'
@@ -74,18 +74,18 @@ const isEditing = ref(false)
 
 const nodeInfo = computed(() => props.nodeData || props.node)
 
-// Local state for title to provide immediate feedback
-const displayTitle = ref(nodeInfo.value?.title || 'Untitled')
+const EMPTY_STRING = ''
+const DEFAULT_TITLE = 'Untitled'
 
-// Watch for external changes to the node title
-watch(
-  () => nodeInfo.value?.title,
-  (newTitle) => {
-    if (newTitle && newTitle !== displayTitle.value) {
-      displayTitle.value = newTitle
-    }
-  }
-)
+const resolveTitle = (info: LGraphNode | VueNodeData | undefined) => {
+  const title = (info?.title ?? EMPTY_STRING).trim()
+  if (title.length > 0) return title
+  const type = (info?.type ?? EMPTY_STRING).trim()
+  return type.length > 0 ? type : DEFAULT_TITLE
+}
+
+// Computed title that provides reactive updates
+const displayTitle = computed(() => resolveTitle(nodeInfo.value))
 
 // Event handlers
 const handleCollapse = () => {
@@ -109,7 +109,5 @@ const handleTitleEdit = (newTitle: string) => {
 
 const handleTitleCancel = () => {
   isEditing.value = false
-  // Reset displayTitle to the current node title
-  displayTitle.value = nodeInfo.value?.title || 'Untitled'
 }
 </script>