[feat] carve out path to call asset browser in combo widget (#5464)

* [ci] ignore local browser tests files

this is where i have claude put its one off playwright scripts

* [feat] carve out path to call asset browser in combo widget

* [feat] use buttons on Model Loaders when Asset API setting is on

src/stores/modelToNodeStore.ts

@@ -1,5 +1,5 @@
 import { defineStore } from 'pinia'
-import { ref } from 'vue'
+import { computed, ref } from 'vue'
 
 import { ComfyNodeDefImpl, useNodeDefStore } from '@/stores/nodeDefStore'
 
@@ -22,6 +22,22 @@ export const useModelToNodeStore = defineStore('modelToNode', () => {
   const modelToNodeMap = ref<Record<string, ModelNodeProvider[]>>({})
   const nodeDefStore = useNodeDefStore()
   const haveDefaultsLoaded = ref(false)
+
+  /** Internal computed for reactive caching of registered node types */
+  const registeredNodeTypes = computed(() => {
+    return new Set(
+      Object.values(modelToNodeMap.value)
+        .flat()
+        .map((provider) => provider.nodeDef.name)
+    )
+  })
+
+  /** Get set of all registered node types for efficient lookup */
+  function getRegisteredNodeTypes(): Set<string> {
+    registerDefaults()
+    return registeredNodeTypes.value
+  }
+
   /**
    * Get the node provider for the given model type name.
    * @param modelType The name of the model type to get the node provider for.
@@ -91,6 +107,7 @@ export const useModelToNodeStore = defineStore('modelToNode', () => {
 
   return {
     modelToNodeMap,
+    getRegisteredNodeTypes,
     getNodeProvider,
     getAllNodeProviders,
     registerNodeProvider,