A few medical fixes. (#22022)

- Pneumalin no longer fixes damage on robotic lungs.
- Fixed augments not processing. This means that HUD augments are fixed
as well.
  - Fixed health analyzers displaying damage between 0 and 1 as 'none'.

Co-authored-by: Matt Atlas <liermattia@gmail.com>

code/modules/organs/internal/_internal.dm

@@ -49,7 +49,6 @@
 
 	..()
 
-	STOP_PROCESSING(SSprocessing, src)
 	target.internal_organs |= src
 	affected.internal_organs |= src
 	target.internal_organs_by_name[organ_tag] = src

code/modules/organs/subtypes/augment/augments/eye_sensors.dm

@@ -48,10 +48,10 @@
 
 	if(selected_hud == "disabled")
 		selected_hud = SEC_HUDTYPE
-		to_chat(user, "You activate \the [src].")
+		to_chat(user, SPAN_NOTICE("You activate \the [src]."))
 	else
 		selected_hud = "disabled"
-		to_chat(user, "You deactivate \the [src].")
+		to_chat(user, SPAN_NOTICE("You deactivate \the [src]."))
 
 /obj/item/organ/internal/augment/eye_sensors/security/process()
 	..()
@@ -67,6 +67,7 @@
 				active_hud = "disabled"
 		else
 			active_hud = "disabled"
+
 /obj/item/organ/internal/augment/eye_sensors/medical
 	name = "integrated medical HUD sensors"
 	action_button_name = "Toggle Medical Sensors"
@@ -76,10 +77,10 @@
 
 	if(selected_hud == "disabled")
 		selected_hud = MED_HUDTYPE
-		to_chat(user, "You activate \the [src].")
+		to_chat(user, SPAN_NOTICE("You activate \the [src]."))
 	else
 		selected_hud = "disabled"
-		to_chat(user, "You deactivate \the [src].")
+		to_chat(user, SPAN_NOTICE("You deactivate \the [src]."))
 
 /obj/item/organ/internal/augment/eye_sensors/medical/process()
 	..()

code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Medicine.dm

@@ -1615,13 +1615,13 @@
 
 /singleton/reagent/pneumalin/affect_breathe(var/mob/living/carbon/human/H, var/alien, var/removed, var/datum/reagents/holder)
 	H.adjustOxyLoss(removed) //Every unit heals 1 oxy damage
-	H.add_chemical_effect(CE_PNEUMOTOXIC, -removed * 1.5)
+	H.remove_chemical_effect(CE_PNEUMOTOXIC, removed * 1.5)
 	H.add_chemical_effect(CE_PULSE, -1)
 
 	var/obj/item/organ/internal/lungs/L = H.internal_organs_by_name[BP_LUNGS]
 	if(istype(L) && !BP_IS_ROBOTIC(L))
 		L.rescued = FALSE
-		L.damage = max(L.damage - (removed * 1.5), 0)
+		L.heal_damage(removed * 1.5)
 
 	. = ..()