[FERN-SCRIBE] Flesh out integration test docs updated #267
Description
📝 What do you want Fern Scribe (AI Technical Writer) to do?
Expand integration test documentation so it's easier to use
🔗 Link to existing Slack thread
https://buildwithfern.slack.com/archives/C08DUNQBNUB/p1748600480153839
📋 Do you know of any documentation that needs to be updated?
No response
❌ If yes, describe why that documentation is incorrect
No response
📰 Changelog Update Required
- Yes, include changelog entry
- No changelog needed
📎 Additional Context
No response