Desktop app cannot import CLI session: 'transcript has no cwd'

Description

When attempting to open a CLI session transcript in the Claude Code desktop app, the import fails with:

CLI session <session-id> transcript has no cwd — cannot import

Steps to Reproduce

1. Run a Claude Code CLI session in a project directory
2. Attempt to open/import that session in the Claude Code desktop app

Root Cause

The transcript .jsonl file's first record is a file-history-snapshot type with no cwd field:

{
  "type": "file-history-snapshot",
  "messageId": "...",
  "snapshot": {
    "messageId": "...",
    "trackedFileBackups": {},
    "timestamp": "2026-04-14T20:54:58.699Z"
  },
  "isSnapshotUpdate": false
}

The cwd field does exist on attachment type records deeper in the file, but the desktop app appears to look for it in a metadata/init record at the start of the transcript and fails when it's not found.

Expected Behavior

The desktop app should either:

• Look for cwd in any record type (e.g., the first attachment record), or
• Gracefully handle missing cwd by prompting the user to select a working directory

Environment

• Claude Code CLI (latest)
• Claude Code Desktop (macOS)
• macOS Darwin 25.3.0