Hello. Why are there lacking the canInteractWith, openInventory and closeInventory forge events (or is there have analogues in the IC)? Due to this it is not possible to protect from opening the container....

Dunno. The AFSU code is more or less a copy of IC2's code.

Sadly :( Generally are unable prevent other players to press redstone signal button (contents of the container are not affected).
It seems actually the problem on the IC side. In a modification ComboArmors and his ArmorAssambler have the same problem, its also extends TileEntityElectricMachine and implements IHasGui...