True when the actor has at least one equipped item with the given keyword held in hand.
"Held" = equipped item with isHeld=true (hand or twoHanded slot), or blank equipSlot (fallback for legacy items).
Convention: set equipSlot to "hand" or "twoHanded" for held items.
The blank-equipSlot fallback preserves behavior for items with no assigned equip slot.
True when the actor has at least one equipped item with the given keyword held in hand. "Held" = equipped item with isHeld=true (hand or twoHanded slot), or blank equipSlot (fallback for legacy items). Convention: set equipSlot to "hand" or "twoHanded" for held items. The blank-equipSlot fallback preserves behavior for items with no assigned equip slot.