test: remove redundant setup/settings now handled by @vue-nodes fixture (#11195)

## Summary

Follow-up cleanup for #11184 — removes redundant test setup calls that
the `@vue-nodes` fixture now handles.

## Changes

- **What**: Remove 40 lines of redundant `setSetting`, `setup()`, and
`waitForNodes()` calls across 11 test files
  - `UseNewMenu: 'Top'` calls (already fixture default)
- `setup()` + `waitForNodes()` on default workflow (fixture already does
this for `@vue-nodes`)
- Page reload in `subgraphZeroUuid` (fixture applies VueNodes.Enabled
server-side before navigation)

## Review Focus

Each removal was verified against the fixture's `setupSettings()`
defaults (ComfyPage.ts:420-442) and the `@vue-nodes` auto-setup (lines
454-456). Tests that call `setup()`/`waitForNodes()` after
`loadWorkflow()` or `page.evaluate()` were intentionally kept.

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-11195-test-remove-redundant-setup-settings-now-handled-by-vue-nodes-fixture-3416d73d36508154827df116a97e9130)
by [Unito](https://www.unito.io)

Co-authored-by: Amp <amp@ampcode.com>

browser_tests/tests/vueNodes/interactions/canvas/zoom.spec.ts

@@ -6,7 +6,6 @@ import {
 test.describe('Vue Nodes Zoom', { tag: '@vue-nodes' }, () => {
   test.beforeEach(async ({ comfyPage }) => {
     await comfyPage.settings.setSetting('LiteGraph.Canvas.MinFontSizeForLOD', 8)
-    await comfyPage.vueNodes.waitForNodes()
   })
 
   test(