[BUG] @ file autocomplete has become slow

Environment

• Platform (select one):
• [x] Anthropic API
• Claude CLI version: 1.0.24
• Operating System: macOS
• Terminal: Alacritty

Bug Description

Entering files with @ used to be snappy. Now it takes nearly a second for matching files to appear after you type @somepaththatshouldmatch

Steps to Reproduce

1. Try to autocomplete a file with @
2. See how it's very slow

Expected Behavior

It should be instant, like it used to be

Actual Behavior

It's slow

Additional Context