Joshen Lim 24f62c4402 Joshen/fe 3432 show maintenance banners only for affected project regions (#46191)
## Context

There'll be an upcoming shared pooler maintenance for specific regions -
so the PR here informs users about that via the following changes

- Shift Terms of Service update into a float banner
- Same local storage key is used for dismissal so users who already
dismissed it won't see this again
  - This is to prevent 2 notice banners scenario
<img width="342" height="235" alt="image"
src="https://github.com/user-attachments/assets/0a10fa53-46a0-4c71-beef-d66e006503fd"
/>

- Updated NoticeBanner to inform users of the upcoming maintenance
- Only projects in specific regions will be affected, so not all
projects will see this
<img width="658" height="75" alt="image"
src="https://github.com/user-attachments/assets/83aabda5-a774-4118-a945-08052b7c6b3e"
/>
<img width="496" height="152" alt="image"
src="https://github.com/user-attachments/assets/a1ccc440-5179-4a4b-919f-208844bb2227"
/>

- Cleaned up unused local storage keys

### To test

- Can be tested on preview as the notice applies for eu-central-1 and
us-east-1


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **New Features**
* Dismissible Terms of Service update banner with “Learn more” dialog so
users can review and acknowledge changes.
* Enhanced maintenance notices showing region-specific maintenance
windows, a status link per region, and formatted UTC timestamps tied to
the selected project.

<!-- review_stack_entry_start -->

[![Review Change
Stack](https://storage.googleapis.com/coderabbit_public_assets/review-stack-in-coderabbit-ui.svg)](https://app.coderabbit.ai/change-stack/supabase/supabase/pull/46191?utm_source=github_walkthrough&utm_medium=github&utm_campaign=change_stack)

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<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-05-22 17:40:12 +07:00
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