<!-- CURSOR_SUMMARY -->
> [!NOTE]
> Improves the Supabase integration completion UX by adding an
actionable control that advances the chat flow.
> 
> - Adds a `Continue` button (using `useStreamChat`) that sends
`"Continue. I have completed the Supabase integration."` to the active
chat via `selectedChatIdAtom`
> - Disables the button while `isStreaming` and shows an error toast if
no chat is available
> - Removes the prior instructional text about clicking a chat
suggestion
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
b384d8756c6861c7682b422883314eea522cc060. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

<!-- This is an auto-generated description by cubic. -->
---
## Summary by cubic
Adds a Continue button to the Supabase integration flow that sends a
“Continue. I have completed the Supabase integration.” message to the
current chat, so users can proceed without hunting for the chat
suggestion.

- **New Features**
- Added Continue button that calls streamMessage with the active chatId
and disables while streaming.
  - Shows an error toast if no chat is available.

<sup>Written for commit b384d8756c6861c7682b422883314eea522cc060.
Summary will update on new commits.</sup>

<!-- End of auto-generated description by cubic. -->

---------
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>