## Context
Saves the last visited explorer tab via `useDashboardHistory`, such that
landing back on `/explorer` will open the last visited page. Similar
behaviour to Table Editor and SQL Editor
Would also be useful when going between the SQL Editor and Explorer to
bring snippets over
<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
* **New Features**
* Explorer now remembers and restores the last visited query, chat, or
notebook tab.
* Automatically returns to the Explorer home screen when a saved tab is
unavailable.
* Displays a loading state while the last visited tab is being restored.
* **Bug Fixes**
* Closing deleted chat tabs now clears their saved history.
* **Tests**
* Added coverage for Explorer tab restoration, loading states, and stale
history cleanup.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
## Summary
* Query blocks embedded inside an active assistant conversation
(`AssistantQueryCell`) reused the same "Debug with Assistant" handler as
standalone query blocks (Explorer Query tab, notebook cells), which
always opens a brand-new chat and navigates away.
* Clicking Debug on a block that's already part of the open conversation
silently abandoned it for an unrelated new chat, which read as the
button doing nothing.
* Added an optional `onDebug` override threaded through `QueryEditor` →
`QueryResultRenderer` → `QueryResultError`; `AssistantQueryCell` now
uses it to write the debug prompt into the currently active chat's
composer (`ai-assistant-state`'s new `setInitialInput`) instead of
creating a new chat. Standalone query blocks keep the existing "open a
new chat" behavior since no `onDebug` override is passed there.
* `ExplorerChatTab` now wires `composerContext` into `AssistantChat` (it
wasn't before), so the pre-filled prompt actually reaches the visible
textarea on the Explorer chat route.
Fixes
[FE-4319](https://linear.app/supabase/issue/FE-4319/debug-with-ai-assistant-does-seemingly-nothing-if-query-is-already).
## Test plan
- [X] `pnpm vitest run` on `QueryResultError.test.tsx` /
`QueryResultError.selfhosted.test.tsx` / `ExplorerChatTab.test.tsx` /
`AssistantQueryCell.utils.test.ts` — all pass, including new test
asserting `onDebug` is called instead of `createChat`.
- [X] `pnpm exec eslint` on touched files — clean (only pre-existing
unrelated warnings).
- [X] Manual check: run a query inside an assistant chat that errors,
click "Debug with Assistant" on that block, confirm the debug prompt
appears in the current chat's composer rather than opening a new chat.
<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
* **New Features**
* Added a “Debug with Assistant” workflow that sends SQL error details
to the AI Assistant as its initial input.
* Preserved the existing behavior of opening a new debug chat when the
Assistant panel is unavailable.
* **Tests**
* Added coverage confirming that debugging invokes the Assistant
callback without creating an additional chat.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
## Context
Improves the tab behaviour for explorer to follow the SQL Editor
- Tabs now start as preview tabs and become permanent once you start
interacting with them
- Query Tabs become permanent as soon as you start typing in the editor
- Chat tabs become permanent as soon as you start typing in the chat
input
- Notebook tabs become permanenet as soon as you make any changes to the
notebook
- Notebooks with unsaved changes will show the orange dot indicator
<img width="197" height="67" alt="image"
src="https://github.com/user-attachments/assets/3005c379-a49a-4cd8-8d90-65406b186141"
/>
- Closing a notebook tab with unsaved changes will show a confirmation
dialog
- Except if the new notebook has no content (no changes)
<img width="375" height="218" alt="image"
src="https://github.com/user-attachments/assets/6ad10779-6415-4c55-bb4f-61d938e744c9"
/>
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Explorer chat, query, and notebook tabs now begin as previews and
become permanent when edited or saved.
* Added unsaved-change indicators and close confirmation for edited
notebook tabs.
* Confirmed closure of edited notebooks now discards unsaved changes.
* **Bug Fixes**
* Improved restoration and persistence of Explorer drafts.
* Notebook saves now reflect the latest edits and tab state.
* Prevented stale save responses from incorrectly marking newer edits as
saved.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
## Context
Just reorganizing the files under the Explorer folder as details are a
bit more clearer
Mainly shifting related and exclusive files into their own folder and
tests into `__tests__` folder + renaming some files
<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
- **New Features**
- Added query result display settings for switching between table and
chart views.
- Added chart configuration options for chart type, axes, scaling,
cumulative mode, and labels.
- Automatically prevents invalid logarithmic scaling when chart data is
incompatible.
- **Refactor**
- Standardized Explorer tab and query source naming across the interface
without changing existing behavior.
- Updated Explorer navigation, routing, and page wiring to use the
standardized components.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Joshen Lim