Fix voltaic combat cyberhearts killing toxlovers (#94041)

## About The Pull Request

Partial port of
https://github.com/Monkestation/Monkestation2.0/pull/9549

this makes it so the voltaic overdrive status effect from the combat
cyberheart won't try to heal toxins for toxin lovers

also moved the voltaic overdrive status effect to
`STATUS_EFFECT_PRIORITY` as it's something where skipping ticks can fuck
you over, as it's likely to be active during a fight, and also made it
so `updatehealth` is only called once.

## Why It's Good For The Game

dying to something that's supposed to give you a second chance kinda
sucks, and there's not really any indicator that it would do this until
you keel over from blood loss mid-fight.

code/modules/surgery/organs/internal/heart/heart_anomalock.dm

@@ -33,6 +33,10 @@
 	QDEL_NULL(core)
 	return ..()
 
+/obj/item/organ/heart/cybernetic/anomalock/examine(mob/user)
+	. = ..()
+	. += span_info("The voltaic boost will avoid healing toxin damage at all in slime-based humanoids, to prevent harmful side effects.")
+
 /obj/item/organ/heart/cybernetic/anomalock/on_mob_insert(mob/living/carbon/organ_owner, special, movement_flags)
 	. = ..()
 	if(!core)
@@ -182,14 +186,19 @@
 	duration = 30 SECONDS
 	alert_type = /atom/movable/screen/alert/status_effect/anomalock_active
 	show_duration = TRUE
+	processing_speed = STATUS_EFFECT_PRIORITY
 
 /datum/status_effect/voltaic_overdrive/tick(seconds_between_ticks)
 	. = ..()
-
-	if(owner.health <= owner.crit_threshold)
-		owner.heal_overall_damage(5, 5)
-		owner.adjust_oxy_loss(-5)
-		owner.adjust_tox_loss(-5)
+	if(owner.health > owner.crit_threshold)
+		return
+	var/needs_update = FALSE
+	needs_update += owner.heal_overall_damage(brute = 5, burn = 5, updating_health = FALSE)
+	needs_update += owner.adjust_oxy_loss(-5, updating_health = FALSE)
+	if(!HAS_TRAIT(owner, TRAIT_TOXINLOVER))
+		needs_update += owner.adjust_tox_loss(-5, updating_health = FALSE)
+	if(needs_update)
+		owner.updatehealth()
 
 /datum/status_effect/voltaic_overdrive/on_apply()
 	. = ..()