Bounderies are good, put in place to protect you, however, it is imperative to say what you mean and mean what you say, bounderies not enforced, are only idle threats and are more damaging than not setting any bounderies in the first place.
Control and contracts? I have never seen either tactic work with an "A". She is an adult, not a minor child, IMO your list is nothing but an attempt to resolve her issue by trying to control her. She will rebel, she will outsmart you, addicts are very cunning.
A boundery is clear and concise, cause vrs effect and follow through by the boundery setter.
Just my two cents.