Saved target that owns the variant override.
This interaction identifier (FInteractionRuntimeSaveId) belongs to FInteractionRuntimeSavedVariantOverrideRecord under InteractionRuntime|Save.
Blueprint or editor workflows can write this value when constructing, overriding, or customizing the owning object.
Keep identifier values stable once content ships because saved state, prompt routing, and authored references may depend on them.
UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "InteractionRuntime|Save")
FInteractionRuntimeSaveId TargetSaveId;