File reference @ does not show files in the current directory

[adamszustak]

Describe the bug

When using the @ file mention feature in Copilot CLI, referencing files relative to the current working directory using @ does not work as expected (does not show available files). However, other path styles do work.

Actual Behavior:

• @.. — ✅ shows files from parent directory
• @~ — ✅ shows files via home directory path
• @/ — ✅ shows files via absolute root path
• @ or @./ — ❌ does not show files in the current directory

Affected version

1.0.40

Steps to reproduce the behavior

1. Open Copilot CLI in a directory containing files
2. Type @ or @./ to reference files in the current directory
3. Observe: no file suggestions or files are not resolvable

Expected behavior

Typing @ or @./ should present files from the current working directory, consistent with how other
path styles behave

Additional context