G6: Offline notice + offline mutation guard

Regenerated from nervly-app@563ea6b052461ddc1555a31ed583646750c6b7ac on 2026-10-08T15:40:43.789Z.

• Route: any
• Status: reachable

Steps

Step 1: Offline notice + offline mutation guard

Playwright context.setOffline(true); banner appears; mutation controls become inert