[FEATURE] searchbox in mention feature doesn't works when I'm trying to search the file by parent folder

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

I have ton of files with the same name - index.tsx, stored under many folders
searchbox in mention feature in CLAUDE doesn't works when I'm trrying to search the file by parent folder

• when Im typing "@index.tsx" I see 50 results - not comfortable

And When I'm trying to search for SaveGame/index.tsx like in the screenshot - then no search results

<img width="444" height="116" alt="Image" src="https://github.com/user-attachments/assets/69e87bb9-8195-479b-ac5f-7f6efde80bda" />

Proposed Solution

please add searching by folder , working similar like in ctrl+p in Vscode

Alternative Solutions

_No response_

Priority

Critical - Blocking my work

Feature Category

CLI commands and flags

Use Case Example

_No response_

Additional Context

_No response_