PATCH `/config/auth` fails if you're using auth hooks (Management API)

# Bug report - [x] I confirm this is a bug with Supabase, not with my own application. - [x] I confirm I have searched the [Docs](https://docs.supabase.com), GitHub [Discussions](https://github.com/supabase/supabase/discussions), and [Discord](https://discord.supabase.com). ## Describe the bug In the [pricing page](https://supabase.com/pricing), and in [the docs](https://supabase.com/docs/guides/auth/auth-hooks?queryGroups=language&language=sql), it's clearly stated that the `send_email` auth hook is available on Free and Pro plans. However, `PATCH`ing any update to the project's auth config using Management API on a project with an enabled `send_email` hook is failing with the following error: > Auth Hooks can only be configured on Team or Enterprise Plans. ## To Reproduce To reproduce, obtain a ACCESS_TOKEN and a PROJECT_REF for a given Free or Pro plan project. Then: 1. In the Supabase dash board UI, enable and add a send_email auth hook. 2. Fetch the project's config: curl -X GET "https://api.supabase.com/v1/projects/${PROJECT_REF}/config/auth" \ -H "Authorization: Bearer ${ACCESS_TOKEN}" \ -H "Content-Type: application/json" \ -o current_auth_config.json 3. Patch back the exact same config: curl -X PATCH "https://api.supabase.com/v1/projects/${PROJECT_REF}/config/auth" \ -H "Authorization: Bearer ${ACCESS_TOKEN}" \ -H "Content-Type: application/json" \ --data-binary "@current_auth_config.json" 4. Observe error. We expected a successful save, but, instead, we see the error. ## Screenshots <img width="554" alt="Image" src="https://github.com/user-attachments/assets/b8ce7b1b-ad01-47bb-9c77-840f5cf0039d" /> ➜ ✗ curl -X PATCH "https://api.supabase.com/v1/projects/${PROJECT_REF}/config/auth" \ -H "Authorization: Bearer ${ACCESS_TOKEN}" \ -H "Content-Type: application/json" \ --data-binary "@new_auth_config.json" {"message":"Auth Hooks can only be configured on Team or Enterprise Plans."}% ## System information - OS: macOS - Browser (if applies…