Is it feasible to integrate Pulat on these small fortifications to protect against ATGM attacks?
APS changes how infantry/armor function together. You can't have infantry near the armor as the explosive charge from APS might injure or kill anyone near it. Pulat wouldn't be ideal as close how explosion would be to the fortification. It can end causing even more damage when the Pulat explosion and rocket hit is combined. Also Pulat can only protect an certain angle, limited coverage. Maybe it could be applicable in some cases, where it wouldn't dangerous to infantry.
AKKOR would be more ideal as it can neutralize threats from further away. Still not enough distance though. If extended range land based variant can be made. It could be more ideal.
I think the best solution is land based APS radar that can detect, track, locate incoming ATGM, rockets etc. Approx location of attackers can be detected. Quickly a loitering munition can be dispatched like STM Kargu to further track and neutralize. Also it should be able to be integrated variety of other systems, sensors. Automatic mortar fire to neutralize or disorientate attackers so they can't attack further. If quick response can be achieved. Attackers will be less hesitant to attack in the future. Same psychology with the drones as why they can't be in large groups even when there is no drones.
Bases need to build with the threats in mind. Hesco barriers can easily survive ATGM. Fortifications should be designed as much as possible to deflect blast. There should be no death bunkers, you can shoot and kill anyone inside with the blast etc.
I don't think there is a army in the world that gives training to survive use of ATGM against anti-personnel. There should be at this point