Does Air France's concierge service include priority boarding?

Yes, Air France's concierge service on departure from CDG includes carrying your baggage to a Sky Priority counter.

Are pets allowed in the private transfers offered by the concierge service?

Pets are accepted on board cars provided they are carried in the same approved crate as the one used to transport them in the cabin or in the hold of the Air France flight on which they are checked in.

From which terminal at CDG does Air France fly?

Air France flights operate from CDG Terminal 2, specifically in sections 2E, 2F and 2G, used for departures and arrivals by the French national airline.