[BUG] [Desktop] Code tab: "Group by project directory" removed without notice — please restore it

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Environment: Claude desktop app, Windows, version 2.37337.1 (ba51ab)

For months I used the Code tab sidebar grouped by project working directory
to track my work across projects. After a recent update this option is gone:
"Group by" now only offers None, Status, Date, Environment (default).
"Reset to defaults" is disabled, so Environment is the new default.

With Environment grouping, sessions of the same project are split between the
project's environment group and the generic "This computer" group, even though
each session still shows its project folder as subtitle.

The problem is not lost data but interface reliability: a core organizational
feature was removed silently, with no notice, no migration and no opt-out.
This makes the tool feel unstable for daily professional use.

Related (closed): #53340

What Should Happen?

Request:

1. Restore "Project / working directory" as a Group-by option.
2. Announce sidebar/organization changes in release notes before removing options.

Error Messages/Logs

Steps to Reproduce

1. Open the Claude desktop app → Code tab
2. Hover a group header in the sidebar → click the filter icon
3. Open "Group by": only None, Status, Date, Environment are available

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.37337.1 (ba51ab)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Other

Additional Information

<img width="515" height="952" alt="Image" src="https://github.com/user-attachments/assets/37ca1b2c-3672-4651-b42c-d432af76c27f" />