This sounds great! I think Thursday's suggestion of having a player facing "corporate brochure" and a warden pamphlet for when things go south is such a great way of doing this.
You could even include the shore leave/player facing rules in the pamphlet so it's not just in world stuff. It's actually useful to the Players!
I would detail some advice (or maybe a procedure depending on what the PCs interact with) for deciding when to put the place into lockdown on the Warden pamphlet.
Maybe the AI asks the PCs questions about "what is it like to have a physical body" and other ominous questions each time they visit until it decides to upload itself.