Quirk "quadruple amputee" now will return your original limbs back if you off it (#90745)

## About The Pull Request

Then you try to remove quirk - your limbs didn't change back to normal

**Visual bug only**, originally found on downstream. Also confirmed on
up-to-date TG-localhost


![error](https://github.com/user-attachments/assets/33c280d2-9aa9-4ccc-bca2-3977a2e723de)

## Why It's Good For The Game

Bug-Fix always good

## Changelog

🆑
fix: Quirk "quadruple amputee" now will return your original limbs back
if you off it
qol: Quirk "prosthetic limb" now resets more correctly
/🆑

---------

Co-authored-by: Maximal08 <73069825+Maximal08@users.noreply.github.com>
Co-authored-by: Ghom <42542238+Ghommie@users.noreply.github.com>

code/modules/surgery/bodyparts/helpers.dm

@@ -29,6 +29,24 @@
 	new_limb.try_attach_limb(src, special = special)
 	return old_limb // can be null
 
+/// Replaces the chosen limb(zone) to the original one
+/mob/living/carbon/proc/reset_to_original_bodypart(limb_zone)
+	if (!(limb_zone in GLOB.all_body_zones))
+		stack_trace("Invalid zone [limb_zone] provided to reset_to_original_bodypart()")
+		return
+
+	// find old limb to del it first
+	var/obj/item/bodypart/old_limb = get_bodypart(limb_zone)
+	if(old_limb)
+		old_limb.drop_limb(special = TRUE)
+		qdel(old_limb)
+
+	// mаke and attach the original limb
+	var/obj/item/bodypart/original_limb = newBodyPart(limb_zone)
+	original_limb.try_attach_limb(src, TRUE)
+	original_limb.update_limb(is_creating = TRUE)
+	regenerate_icons()
+
 /mob/living/carbon/has_hand_for_held_index(i)
 	if(!i)
 		return FALSE