Some Processing improvements (#80693)

## About The Pull Request
Got the idea from #80682. A lot of parent procs don't do anything, some
are just formatted in a bad way, and others early return and do no ops,
it's bad in general but this should give us a head start.

Some good overhead saved here

code/modules/assembly/health.dm

@@ -46,25 +46,30 @@
 		to_chat(user, span_notice("You toggle [src] to \"detect critical state\" mode."))
 
 /obj/item/assembly/health/process()
+	//not ready yet
 	if(!scanning || !secured)
 		return
 
-	var/atom/A = src
+	//look for a mob in either our location or in the connected holder
+	var/atom/object = src
 	if(connected?.holder)
-		A = connected.holder
-	for(A, A && !ismob(A), A=A.loc);
-	// like get_turf(), but for mobs.
-	var/mob/living/M = A
+		object = connected.holder
+	while(!ismob(object))
+		object = object.loc
+		if(isnull(object)) //we went too far
+			return
 
-	if(M)
-		health_scan = M.health
-		if(health_scan <= alarm_health)
-			pulse()
-			audible_message("<span class='infoplain'>[icon2html(src, hearers(src))] *beep* *beep* *beep*</span>")
-			playsound(src, 'sound/machines/triple_beep.ogg', ASSEMBLY_BEEP_VOLUME, TRUE)
-			toggle_scan()
+	//only do the pulse if we are within alarm thresholds
+	var/mob/living/target_mob = object
+	health_scan = target_mob.health
+	if(health_scan > alarm_health)
 		return
-	return
+
+	//do the pulse & the scan
+	pulse()
+	audible_message("<span class='infoplain'>[icon2html(src, hearers(src))] *beep* *beep* *beep*</span>")
+	playsound(src, 'sound/machines/triple_beep.ogg', ASSEMBLY_BEEP_VOLUME, TRUE)
+	toggle_scan()
 
 /obj/item/assembly/health/proc/toggle_scan()
 	if(!secured)