[Endoperez]

Nice idea, and constructs already get some similar exceptions. However, it should be automatic. Perhaps draining unused resources from the province, like fixing spell-broken armor, but only limited to provinces with labs.

Creatures that have both "does not heal" and "magic being" tags will automatically heal (regain hitpoints) whenever they are in a province with a friendly lab. Most constructs with "does not heal" are also magic beings.

Units whose armor has been broken (Armor of Achilles, Acid Storm) need to be in a province with unused resources to get them fixed.