Multi-file drag and drop only registers first file

Description

When dragging and dropping multiple files into the Claude Code terminal input, only the first file is picked up. Previously, dragging 10+ files at once would correctly attach all of them.

Steps to reproduce

1. Open Claude Code in terminal
2. Select multiple files (e.g. 5-10) in Finder
3. Drag and drop them all at once into the Claude Code input
4. Only 1 file appears in the prompt

Expected behavior

All dragged files should be attached/referenced in the input, as they were in earlier versions.

Environment

• macOS (Darwin 23.6.0)
• Claude Code CLI