## Summary
- Removes the "API Docs" navigation item from the sidebar and mobile
menu
- Removes the `UI_PREVIEW_API_SIDE_PANEL` feature preview flag since the
feature is fully rolled out
- Makes API docs buttons unconditionally visible across Auth Users,
Storage, Edge Functions, and SecondLevelNav
## Test plan
- [x] `NavigationBar.utils` tests pass (26 tests)
- [x] `FileExplorerHeader` tests pass (6 tests)
- [x] TypeScript compiles with no errors
- [ ] Verify sidebar no longer shows "API Docs" nav item
- [ ] Verify API docs buttons still appear in Auth Users, Storage, and
Edge Functions pages
- [ ] Verify feature preview modal no longer lists "Project API
documentation"
Resolves FE-2759
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* APIDocs button can optionally display a label and use a custom
tooltip.
* **Chores**
* Removed the API docs side-panel feature flag and its localStorage key.
* “API Docs” navigation entry removed; sidebar no longer special-cases
that route.
* Back links and API Docs buttons now render consistently across the app
(no flag gating).
* **Tests**
* Tests updated to stop depending on the removed feature-flag behavior.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
## 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?
- refactor navigation utils to pass in is_platform
- write unit tests for configuration returns
- default is always passed from constant IS_PLATFORM
Andrey A.