Fighters or attack craft (VERY small craft of some kind not seen on screen before attacking in formation, anyway) are seen on screen, and Sisko refers to fighter wings. I don't recall if carriers are mentioned or not. Fighter carriers or attack ship tenders would almost be required. There wouldn't be any point in building fighters that had full crew comforts... the advantage of fightercraft is the lesser economic cost of building them. Put all that stuff on one vessel, it can be used by any number of personnel.
“I am a soldier. I fight where I am told, and I win where I fight.”
General George S. Patton, Jr.