Sliding door for wardrobe niche in the hallway wanted

The niche is about 100cm deep, 108cm wide, and approximately 254cm high

Yes, making both doors movable is also possible so that you can open them from the left or right

The niche should be used as a small shelf and storage space for additional jackets and shoes. The vacuum cleaner is supposed to go in there

What do you mean by the stable door? I think a sliding door would be better

A carpenter will definitely be too expensive; I think we will have to resort to a kit

I can once again only recommend vertical slat "curtains." They allow wide access, can be color-matched to the surroundings, can be ordered online with centimeter precision, and fill the entire gap.