The `backupProxySuccess` property was being assigned to the `debugInfo` object in the `testSupabaseConnection` function, but it was not defined in the type definition. This commit adds the `backupProxySuccess` property to the type definition of the `debugInfo` object to resolve the TypeScript error.
Refactor the supabase.ts file into smaller modules, separating test functionalities and default client configurations while preserving all code functionalities.