Soak beans in water overnight. Drain and rinse; set aside.
Season chicken thighs with 1/4 tsp each salt and pepper; set aside.
Add bacon to inner pot of Instant Pot Duo Crisp + Air Fryer. With lid off, select Saute, then set to High Temperature. Cook for 5 to 7 minutes or until fat begins to render and bacon is crispy. Transfer bacon to paper towel–lined plate.
Place chicken thighs in pot, skin side down. Cook for 3 to 5 minutes per side or until starting to brown. Transfer chicken to plate.
Stir in onion, celery, carrot, leek, garlic, herbes de Provence, and remaining salt and pepper. Cook for 3 to 5 minutes or until vegetables start to soften. Stir in tomato paste. Cook for 1 minute. Stir in wine, thyme sprigs and bay leaves; bring to boil.
Press Cancel. Layer soaked beans, chicken, pork stewing meat, kielbasa and reserved bacon over top. Pour in broth.
Place lid on pot and lock in place to seal. Pressure Cook on High Pressure for 30 minutes.
When pressure cooking is complete, Naturally Release the pressure. Once pressure is released, remove the lid. Discard bay leaves.
Stir together bread, Parmesan cheese and olive oil. Sprinkle over top of casserole. Using the Air Fryer Lid select Roast at 400°F for 3 to 5 minutes or until topping is golden brown and toasted. Sprinkle with chives.