Improves Vaurca Magboot Augment (#19137)

The Vaurca integrated mag-claw augment now mimics magboot functionality
(not slipping, etc) rather than deploying an entire pair of magboots
onto the user. Code shamelessly copied from #18875

code/modules/mob/living/carbon/human/human_movement.dm

@@ -78,6 +78,9 @@
 			if(species.can_breathe_water())
 				tally -= T.movement_cost
 
+	if(HAS_TRAIT(src, TRAIT_SHOE_GRIP))
+		tally += 1
+
 	tally += GLOB.config.human_delay
 
 	if(!isnull(facing_dir) && facing_dir != dir)
@@ -119,6 +122,8 @@
 /mob/living/carbon/human/Check_Shoegrip(checkSpecies = TRUE)
 	if(shoes && (shoes.item_flags & ITEM_FLAG_NO_SLIP) && istype(shoes, /obj/item/clothing/shoes/magboots) && !lying && !buckled_to && !length(grabbed_by))  //magboots + dense_object = no floating. Doesn't work if lying. Grabbedby and buckled_to are for mob carrying, wheelchairs, roller beds, etc.
 		return TRUE
+	if(HAS_TRAIT(src, TRAIT_SHOE_GRIP))
+		return TRUE
 	return FALSE
 
 /mob/living/carbon/human/set_dir(var/new_dir, ignore_facing_dir = FALSE)