Short answers, pulled from the story.
Anne François Augustin de La Bourdonnaye established the Army of the Interior on the 4th of September 1792. This force operated under his direct command for less than two weeks before immediate reorganization.
Armand Louis de Gontaut-Biron took charge from the 28th of May until the 16th of July 1793. Jean Antoine Rossignol received his appointment on the 31st of July and maintained command for most of the unit's remaining life.
The French Convention issued a decree on the 2nd of October 1793 that dissolved the original Army of the Interior structure. This order mandated a merger between the army of Mayence and specific units from the armée des côtes de la Rochelle operating in the Loire-Inférieure department.
Napoleon Bonaparte assumed full command from Paul Barras on the 26th of October 1795 while retaining control for several additional days after leaving for Italy. He departed for his new Army of Italy command on the 2nd of March 1796 but held authority over the Interior force until the 10th of March.
A decree dated the 25th of August 1796 officially disbanded the force effective on the 22nd of September. This final dissolution ended all operational history for both iterations of the Army of the Interior.