Do not include the same file multiple times when they are shared by multiple workspace groups.

[Jufralice]

Hello,
When you have a workspace file with for example:
groupX:
-data: [myFileA, myFileB],
groupY

• data: [myFileC, myFileB]

if in the chat session you mention both the workspace groups: groupX and groupY, the myFileB will be added twice in your prompt.
I think that we should only add it once.

Thanks a lot.