Open AK, call the 3-bet, raise the flop, check the turn, and call the river shove with top pair/top kicker.
K92 rainbow heavily favors our opening range, and BB’s small lead is often a stab with air or medium-strength hands. With AK we have top pair and strong blockers, so turning it into a value/protection raise is very reasonable—our hand is strong and we want to punish their bluffs and charge their draws.
The 7h is a total brick and doesn’t change the board’s texture. After we raise flop and BB calls, checking back with top pair is a solid option—our hand is still very strong but not invulnerable, and betting mostly isolates us against better Kx or sets while folding out the hands we’re ahead of.
River 4c bricks again and BB now shoves 56bb into 129.5bb. We’re getting about 2.3:1 and need ~30% equity; AK still beats a lot of bluffs and some weaker Kx, so calling is the standard play.