Human Hard Del Fix (#21884)

This PR fixes the Hard Del() caused by deleting any
/mob/living/carbon/human. For once I've actually sat down and tested a
hard del PR, so here's the proof that the problem is solved:

<img width="1305" height="411" alt="image"
src="https://github.com/user-attachments/assets/d11d7e14-e349-4a33-b154-0821c27154a4"
/>

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

@@ -43,8 +43,10 @@
 	QDEL_NULL(bloodstr)
 	QDEL_NULL(dna)
 	QDEL_NULL(breathing)
-	for(var/guts in internal_organs)
-		qdel(guts)
+	// Delete and null a direct list of references to our internal organs (such as brain, lungs, heart, etc).
+	QDEL_LIST(internal_organs)
+	// Null an Associative list of String = Reference to the same organs.
+	internal_organs_by_name = null
 	return ..()
 
 /mob/living/carbon/rejuvenate()

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

@@ -114,9 +114,10 @@
 
 	GLOB.human_mob_list -= src
 	GLOB.intent_listener -= src
+	// This is apparently a different list entirely from the list of organs on /mob/living/carbon.
+	// It's actually the set of all Limbs (left arm, head, leg leg, etc) we have. We Qdel and null the set of all limbs, which is unique to /human.
 	QDEL_LIST(organs)
-	internal_organs_by_name = null
-	internal_organs = null
+	// Then also null the associative list of those same limbs, which contains the same references.
 	organs_by_name = null
 	bad_internal_organs = null
 	bad_external_organs = null

code/modules/mob/mob.dm

@@ -4,7 +4,10 @@
 
 /mob/Destroy()//This makes sure that mobs with clients/keys are not just deleted from the game.
 	MOB_STOP_THINKING(src)
-
+	// Tell any mobs touching us that they're not pulling us anymore.
+	stop_pulling()
+	// Delete and null the grab objects that are touching this mob.
+	QDEL_LIST(grabbed_by)
 	GLOB.mob_list -= src
 	GLOB.dead_mob_list -= src
 	GLOB.living_mob_list -= src

html/changelogs/hellfirejag-human-hard-del-fix.yml

@@ -0,0 +1,4 @@
+author: Hellfirejag
+delete-after: True
+changes:
+  - bugfix: "Fixed a hard delete related to human mobs."