## What
- Moves the temporary "Switch to SQL Editor" button out of the Explorer
sidebar header into a footer section ("Looking for snippets?") with a
short explanation and an **Open SQL Editor** button.
- Replaces the header slot with a menu for the Explorer startup
preference (**Start page** / **SQL query**), instead of linking out to
account preferences.
## How to test
1. Enable the Explorer feature preview and open
`/project/<ref>/explorer`.
2. **Header menu:** click the ⋮ button next to the Explorer title. Pick
**SQL query**, then check that **Explorer startup** on `/account/me`
shows the same value (and vice versa).
3. **Footer:** click **Open SQL Editor**. You should land in the SQL
Editor with the **Back to Explorer** button in its title bar.
4. Open **Notebooks** or **Chats** in the sidebar and check that the
menu and footer are hidden there, like the old button was.
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Choose whether the Explorer opens to the Start page or SQL query from
the Explorer preferences menu. Your selection is saved and retained when
you reopen the menu.
* Access the SQL Editor from the Explorer’s sidebar footer.
* Explorer preferences are available from the Explorer navigation
header.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---------
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Tyler <dshukertjr@gmail.com>
Co-authored-by: Nik Richers <nrichers@gmail.com>
Co-authored-by: Danny White <3104761+dnywh@users.noreply.github.com>
Co-authored-by: Joshen Lim <joshenlimek@gmail.com>
Co-authored-by: Jordi Enric <37541088+jordienr@users.noreply.github.com>
Co-authored-by: Gildas Garcia <1122076+djhi@users.noreply.github.com>
Co-authored-by: Katerina Skroumpelou <mandarini@users.noreply.github.com>
Co-authored-by: Franek <franek@ferly.co.uk>
Co-authored-by: Franek Richardson <franek@supabase.io>
Co-authored-by: Michał Olszewski <35968924+charconstpointer@users.noreply.github.com>
Co-authored-by: Steven Eubank <47563310+smeubank@users.noreply.github.com>
Co-authored-by: Anthony Lio <lionnet.ant@gmail.com>
Co-authored-by: Joey Lei <6957385+leizerbeam@users.noreply.github.com>
Co-authored-by: Ali Waseem <waseema393@gmail.com>
Co-authored-by: Samir Ketema <6003000+samirketema@users.noreply.github.com>
Co-authored-by: K-Dog (Kevin) <k.grueneberg1994@gmail.com>
Moves Explorer’s back navigation and create actions into a reusable
sidebar breadcrumb header. Reduces product-menu headings globally to
`text-sm` and keeps breadcrumb links free of padding, borders, and
backgrounds.
### How to test
1. Open `/project/<ref>/explorer` and confirm the header shows Explorer
and the SQL Editor switch action.
2. Open Notebooks and Chats. Confirm the header shows `Explorer >
Notebooks/Chats` and the corresponding create action works.
3. Return using the Explorer breadcrumb with a click or Tab + Enter.
Check that the label stays aligned and has no hover background.
4. Open another product, such as Database, and confirm its sidebar
heading uses the smaller font size.
5. At a mobile viewport, open the menu and repeat the notebook/chat
actions and back navigation without closing the sheet. Confirm the
header stays current and disappears when returning to the main menu or
opening another product.
Validation: 18 focused tests, typecheck, formatting, and lint ratchet
passed.
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
- **New Features**
- Added a shared Explorer sidebar header with breadcrumbs and contextual
actions for creating notebooks and chats.
- Added keyboard-accessible navigation between the Explorer overview and
notebook or chat sections.
- Added support for customized product menu headers across project
layouts.
- **Improvements**
- Centralized Explorer navigation and actions in the shared sidebar
layout.
- Improved mobile menu updates when navigating between Explorer
resources.
- Refined Explorer home layout and drag-handle behavior across screen
sizes.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---------
Co-authored-by: Joshen Lim <joshenlimek@gmail.com>
