feat(M4): Reusable code abstractions and dead-code removal

skills/web-automation/opencode/scripts/auth.ts

@@ -11,7 +11,7 @@
  *   npx tsx auth.ts --url "https://example.com" --type auto
  */
 
-import { getPage, launchBrowser } from './browse.js';
+import { getPage, launchBrowser } from './lib/browser.js';
 import parseArgs from 'minimist';
 import type { Page, BrowserContext } from 'playwright-core';
 import { createInterface } from 'readline';