CLI hangs when --resume is given a nonexistent session name

Summary

When resuming a session with --resume and the provided name doesn't match an existing session, the CLI hangs indefinitely instead of returning an error or prompting the user.

Steps to reproduce

1. Start a session: claude --session "self-hosted-260402"
2. Later, try to resume with a typo (space instead of hyphen): claude --resume "self-hosted 260402"
3. The CLI hangs — no output, no error, no input accepted.

Expected behavior

The CLI should either:

• Return an error like No session found matching "self-hosted 260402"
• List similar session names and prompt the user to pick one

Environment

• macOS (Apple Silicon)
• Claude Code CLI installed via claude install