Two doors to the hallway touch each other

But that might be the simple and probably not very DIN-compliant blonde solution.

But. You use the second escape route

From a planning perspective, I find this door completely useless anyway and would dispose of it right there.

I would consider it too. Another alternative: to have it open inward.

The door to the storage room is anyway a complete misdesign. My first act after moving in would be to take the thing off its hinges, just like the door to the living room. How are you supposed to actually get a stroller in there? Through the front door, push the stroller in. Close the front door, push the stroller back again. Open the door to the storage room all the way, push the stroller in. Such nonsense...