Faile to open cli session in VSCode

[ColdeZhang]

Describe the bug

Failed to open chat session: Session file is corrupted (line 165: Unknown event type: "system.notification")

Affected version

GitHub Copilot CLI 1.0.5. github.copilot-chat 0.39.2

Steps to reproduce the behavior

1. Create a session in cli;
2. open the same workspace in vscode;
3. open the session;
4. get vscode error Failed to open chat session: Session file is corrupted (line 165: Unknown event type: "system.notification")

Expected behavior

The session should be opend in copilot chat

Additional context

May same problem with #2000