It's my understanding that when it comes to teleportation the AI only has the ability to teleport anchored ships from another port to fill out the requisite ships for a script ordered task force. So, there are no teleporting task forces, just ships that are "borrowed" as needed to make a TF. Land units cannot teleport to react to an amphibious invasion if that's what you mean.
My submarines have encountered or torpedoed enough damaged AI warships limping home from battles that took place days or weeks earlier to conclude that it doesn't automatically teleport crippled ships to the safety of distant shipyards although it can teleport such ships for task force use.
I don't know about ships and TFs but I'm pretty sure the AI can see all my LCUs. It always seems to know to bomb them when they are in move mode.

However, from what I've observed it doesn't seem to know or suspect when there are warships lurking in a nearby port. I've annihilated many unsuspecting AI cargo TFs unloading close by with warships disbanded in a nearby port and making a surface foray on the next turn.
The AI does get a lot of perks in other areas. It's not bound by garrison requirements or HQ restrictions. I don't think it suffers PP penalties for its habit of not withdrawing ships or air squadrons.