More things use trait huds over raw hud management (#93084)

code/modules/mob/living/basic/space_fauna/lightgeist.dm

@@ -48,13 +48,11 @@
 /mob/living/basic/lightgeist/Initialize(mapload)
 	. = ..()
 	ADD_TRAIT(src, TRAIT_VENTCRAWLER_ALWAYS, INNATE_TRAIT)
+	ADD_TRAIT(src, TRAIT_MEDICAL_HUD, INNATE_TRAIT)
 
 	remove_verb(src, /mob/living/verb/pulled)
 	remove_verb(src, /mob/verb/me_verb)
 
-	var/datum/atom_hud/medical_sensor = GLOB.huds[DATA_HUD_MEDICAL_ADVANCED]
-	medical_sensor.show_to(src)
-
 	AddElement(/datum/element/simple_flying)
 	AddComponent(\
 		/datum/component/healing_touch,\

code/modules/mob/living/basic/space_fauna/spider/giant_spider/giant_spiders.dm

@@ -169,8 +169,6 @@
 	web_speed = 0.25
 	web_type = /datum/action/cooldown/mob_cooldown/lay_web/sealer
 	menu_description = "Avarage speed spider able to heal other spiders and itself together with a fast web laying capability, has low damage and health."
-	///The health HUD applied to the mob.
-	var/health_hud = DATA_HUD_MEDICAL_ADVANCED
 
 ///Used in the caves away mission.
 /mob/living/basic/spider/giant/nurse/away_caves
@@ -179,8 +177,7 @@
 
 /mob/living/basic/spider/giant/nurse/Initialize(mapload)
 	. = ..()
-	var/datum/atom_hud/datahud = GLOB.huds[health_hud]
-	datahud.show_to(src)
+	ADD_TRAIT(src, TRAIT_MEDICAL_HUD, INNATE_TRAIT)
 
 	AddComponent(/datum/component/healing_touch,\
 		heal_brute = 10,\

code/modules/mob/living/basic/space_fauna/spider/young_spider/young_spider_subtypes.dm

@@ -92,13 +92,10 @@
 	speed = 0.7
 	web_speed = 0.5
 	web_type = /datum/action/cooldown/mob_cooldown/lay_web/sealer
-	///The health HUD applied to the mob.
-	var/health_hud = DATA_HUD_MEDICAL_ADVANCED
 
 /mob/living/basic/spider/growing/young/nurse/Initialize(mapload)
 	. = ..()
-	var/datum/atom_hud/datahud = GLOB.huds[health_hud]
-	datahud.show_to(src)
+	ADD_TRAIT(src, TRAIT_MEDICAL_HUD, INNATE_TRAIT)
 
 	AddComponent(/datum/component/healing_touch,\
 		heal_brute = 15,\