## I have read the
[CONTRIBUTING.md](https://github.com/supabase/supabase/blob/master/CONTRIBUTING.md)
file.
YES
## What kind of change does this PR introduce?
Replace the deploy-gated `dashboard_auth:sign_in_with_chatgpt` AND-gate
with useFlag('ShowSignInWithChatGptButton') OR'd against the existing
localStorage opt-in switch, so rollout/rollback no longer requires a
frontend deploy. Remove the now-dead static flag, its only consumer was
this gate.
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* ChatGPT sign-in availability now responds to either the local opt-in
setting or the updated configuration flag.
* GitHub sign-in continues to follow its dedicated feature setting.
* **Bug Fixes**
* Corrected identity provider visibility across different sign-in
configuration combinations.
* **Chores**
* Removed the obsolete ChatGPT sign-in feature setting.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->