Do Heidi's integrations respect my systems' permissions?
Yes, per fact. A fact captured from a private channel, a restricted folder, or a 1:1 keeps the audience of its source, and Heidi's answers respect what the asker is allowed to see.
Permissions are not a global setting bolted on afterwards: they travel with each fact from the moment of capture, and recall enforces them per person.
That is what makes one shared brain safe in a real organization: shared for those who should see it, invisible to those who should not.