Summary

• initialize the operator dashboard with empty/loading state instead of demo data in production
• keep demo data opt-in for local development with ?demo=1
• treat non-JSON operator API responses, including Cloudflare Access HTML/login pages, as visible API failures instead of preserving stale/demo data
• add the Vite env type declaration needed for the demo flag

Verification

• npm run check
• npm run test
• npm run build