Ports /tg/ spatial grid system, refactors telecomms, destroys lag (#15140)

code/modules/cargo/bounty.dm

@@ -88,9 +88,7 @@
 // It handles items shipped for bounties.
 /datum/controller/subsystem/cargo/proc/bounty_ship_item_and_contents(atom/movable/AM, dry_run=FALSE)
 	var/list/matched_one = FALSE
-	var/list/contents = list()
-	contents += AM
-	contents += AM.GetAllContents()
+	var/list/contents = AM.GetAllContents()
 	for(var/thing in reverseRange(contents))
 		var/matched_this = FALSE
 		for(var/datum/bounty/B in bounties_list)
@@ -227,4 +225,3 @@
 		if(B.claimed)
 			++count
 	return count
-

code/modules/cargo/exports.dm

@@ -30,9 +30,7 @@ Credit dupes that require a lot of manual work shouldn't be removed, unless they
 	var/sold_str = ""
 	var/cost = 0
 
-	var/list/contents = list()
-	contents += AM //Also add the container object
-	contents += AM.GetAllContents()
+	var/list/contents = AM.GetAllContents()
 
 	// We go backwards, so it'll be innermost objects sold first
 	for(var/i in reverseRange(contents))