fix(explorer): harden operations smoke test and surface note placement

Move extended token-list label to the operations intro, wait for network idle
before asserting, and clear conflicting NO_COLOR/FORCE_COLOR in Playwright config.

Co-authored-by: Cursor <cursoragent@cursor.com>

playwright.config.ts

@@ -1,9 +1,8 @@
 import { defineConfig, devices } from '@playwright/test';
 
-// Avoid Node warning: "NO_COLOR env is ignored due to FORCE_COLOR"
-if (process.env.NO_COLOR !== undefined) {
-  delete process.env.FORCE_COLOR;
-}
+// Cursor/CI often sets both; Node warns when they conflict.
+delete process.env.NO_COLOR;
+delete process.env.FORCE_COLOR;
 
 export default defineConfig({
   testDir: './scripts',