[BUG] Conversation history lost for projects on Samba network drives since v2.1.69

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:

• VS Code: 1.118.1 (Windows 10 x64)
• Claude Code: v2.1.69+ (regression, v2.1.68 works correctly)
• Project location: Samba mapped network drive (fixed drive letter)

Bug:
After updating to v2.1.69, conversation history is no longer
persisted/loaded for projects located on Samba mapped network drives.

Expected: History works as it did in v2.1.68
Actual: Session list shows empty / "Untitled" after restarting VS Code

Reproduction:

1. Map a Samba share as a fixed drive letter on Windows
2. Open a project from the mapped drive in VS Code
3. Start a Claude Code conversation
4. Restart VS Code
5. Conversation history is gone

Note: Projects on local disk work correctly.
This is a regression from v2.1.68 which handled Samba paths correctly.

What Should Happen?

conversation history should be loaded successfully with latest version.

Error Messages/Logs

Can not load conversation history .

Steps to Reproduce

Reproduction:

1. Map a Samba share as a fixed drive letter on Windows
2. Open a project from the mapped drive in VS Code
3. Start a Claude Code conversation
4. Restart VS Code
5. Conversation history is gone

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

1.0.123

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

VS Code integrated terminal

Additional Information

_No response_