Your records are walled off
in placeEvery table that holds a business's data checks, in the database itself, that the person asking belongs to that business, for reading and for writing. One customer's account cannot open another's, even if the app above it made a mistake.
Where it is in our code
data/supabase/migrations/20260527000000_multi_tenant_foundation.sql + 20260530020000_byok_endpoints.sql + 20260530030000_push_subscriptions.sql