[BUG] Vendored ripgrep won't launch if Claude Code is installed into a directory with a space in the path

Environment

• Platform (select one):
• [X] Anthropic API
• [ ] AWS Bedrock
• [ ] Google Vertex AI
• [ ] Other: <!-- specify -->
• Claude CLI version: 0.2.66
• Operating System: macOS Sequoia 15.1.1
• Terminal: iTerm2, Terminal App

Bug Description

The Search step always returns no results even for trivial patterns. This makes Claude use a lot more resources to read files looking for things.

Steps to Reproduce

1. Create a new "project" directory, named foo.
2. cd foo
3. Create a new file called womble.py with the contents:

def cabbage():
    return "cabbage"

1. Run claude --verbose --debug --mcp-debug
2. Tell Claude to "search for the "cabbage" function using only the search feature"

Expected Behavior

I expected the "Search" tool to be invoked and for it to find the function with that alone.

Actual Behavior

The Search tool finds nothing. Telling Claude to read the file and look for the function shows it can do that though.

Additional Context

<img width="1169" alt="Image" src="https://github.com/user-attachments/assets/bb9a0a41-86a1-4990-85bd-91483c58c2ef" />