Team mode stores one disk per Space. computer/readFile and computer/files
only verified the caller owns the entry bot; an explicit bots/<otherBotId>/…
path let one member read another member's workspace. Wire existing path guards
into the API router and executor file/shell tools, and add a shared-Space
authorization regression test.
Co-authored-by: cynarAI <cynarAI@users.noreply.github.com>
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