## Context
As per PR title - sets up incremental default opt in for the Database
Connections feature preview
Database Connections preview banner should still only show up if it's
never been dismissed before, but the CTA's changed to "Explore" rather
than "Enable" if the user's default opted in
Related discussion here:
https://github.com/orgs/supabase/discussions/48639
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Database Connections preview is now enabled by default.
* Added clearer handling for preview state and initialization.
* Banner actions open Database Connections when enabled, or the feature
preview when disabled.
* **Bug Fixes**
* Improved banner and menu visibility while preview settings initialize.
* Preserved banner dismissal behavior after a previous preference
change.
* Improved navigation consistency across Database Connections entry
points.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
## Context
As per PR title - brings Database Connections into feature preview
Should be working for both hosted + self-host/local
Also adjusts existing feature previews to remove "New"
- Platform webhooks
- Temporary database access
<img width="600" alt="image"
src="https://github.com/user-attachments/assets/b18ae8ca-ce0b-4649-975c-e70749a87dcd"
/>
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Added a Database Connections preview highlighting live activity, query
blocking detection, session termination, and AI-assisted summaries.
* Added access to project-specific observability connections from the
preview.
* Added a Database Connections entry to the observability menu when
enabled.
* **Improvements**
* Updated feature previews and labels, including changes to “new” status
indicators.
* Added controls to manage Database Connections preview visibility.
* **Bug Fixes**
* Improved blocker detection so results respect the selected role
filters.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
## Context
Just refactors `ObservabilityMenu` to retrieve the menu items via a hook
+ scaffold the Top for Postgres menu item
No functional changes here
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Added a keyboard shortcut (`U`, then `C`) for quickly opening
Observability Connections.
* Improved observability navigation with feature-aware sections and
consistent URL parameter preservation.
* Custom reports are now sorted alphabetically and include available
actions directly in the menu.
* **Bug Fixes**
* Improved handling of missing report details and duplicate or
unsupported query parameters.
<!-- 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
Joshen Lim