If I try to open a table in the data explorer and it fails because `pandas` isn't installed, it should prompt me with a button to install it

System details:

Positron and OS details:

Positron Dev Version: 2026.06.0 build 0
Code - OSS Version: 1.111.0
Commit: Unknown
Date: Unknown
Electron: 39.6.0
Chromium: 142.0.7444.265
Node.js: 22.22.0
V8: 14.2.231.22-electron.0
OS: Darwin arm64 25.5.0

Session details:

Describe the issue:

When using the Connections pane, if I try to open a table in the data explorer and it fails because pandas isn't installed, it should prompt me with a button to fix it.

Steps to reproduce the issue:

1. Don't have pandas installed
2. Try to open a table in the connections pane with the data explorer. You can create a new python connection with the database ~/.vscode-oss-dev/User/globalStorage/state.vscdb
3. Notification should appear

Expected or desired behavior:

It would be nice if there was a button to click to do this.

I had to use the Packages pane and manually look it up. While doing that, Positron appears to crash, but I think that might have been unrelated.

Were there any error messages in the UI, Output panel, or Developer Tools console?

I couldn't find anything interesting in the logs.

Start by reproducing the failure from the Connections pane with a Python connection and an uninstalled pandas package, then trace the data explorer notification and the existing Packages pane lookup. Done means the notification offers a button that starts the pandas installation flow and the table can be opened afterward.