[backport 1.27] [chore] make experiment asset api setting hidden (#5861)

Backport of #5851 to to `core/1.27`

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-5861-backport-1-27-chore-make-experiment-asset-api-setting-hidden-27e6d73d3650819ea7c0fc0d48a393ee)
by [Unito](https://www.unito.io)

Co-authored-by: Arjan Singh <1598641+arjansingh@users.noreply.github.com>

Author: AustinMroz

src/platform/assets/services/assetService.ts

@@ -12,6 +12,7 @@ import { useModelToNodeStore } from '@/stores/modelToNodeStore'
 const ASSETS_ENDPOINT = '/assets'
 const MODELS_TAG = 'models'
 const MISSING_TAG = 'missing'
+const EXPERIMENTAL_WARNING = `EXPERIMENTAL: If you are seeing this please make sure "Comfy.Assets.UseAssetAPI" is set to "false" in your ComfyUI Settings.\n`
 
 /**
  * Input names that are eligible for asset browser
@@ -26,7 +27,9 @@ function validateAssetResponse(data: unknown): AssetResponse {
   if (result.success) return result.data
 
   const error = fromZodError(result.error)
-  throw new Error(`Invalid asset response against zod schema:\n${error}`)
+  throw new Error(
+    `${EXPERIMENTAL_WARNING}Invalid asset response against zod schema:\n${error}`
+  )
 }
 
 /**
@@ -44,7 +47,7 @@ function createAssetService() {
     const res = await api.fetchApi(url)
     if (!res.ok) {
       throw new Error(
-        `Unable to load ${context}: Server returned ${res.status}. Please try again.`
+        `${EXPERIMENTAL_WARNING}Unable to load ${context}: Server returned ${res.status}. Please try again.`
       )
     }
     const data = await res.json()

src/platform/settings/constants/coreSettings.ts

@@ -1051,7 +1051,7 @@ export const CORE_SETTINGS: SettingParams[] = [
   {
     id: 'Comfy.Assets.UseAssetAPI',
     name: 'Use Asset API for model library',
-    type: 'boolean',
+    type: 'hidden',
     tooltip: 'Use new Asset API for model browsing',
     defaultValue: false,
     experimental: true