feat: implement networked match HUD with real-time scoreboard and killfeed systems

entities/killable_dummy.gd

@@ -61,6 +61,22 @@ func take_damage(amount: float, hit_position: Vector3, source: Node = null) -> v
 		
 	if health <= 0:
 		_die(hit_position, source, dmg_taken)
+		
+		var nm = get_node_or_null("/root/NetworkManager")
+		if nm and multiplayer.has_multiplayer_peer():
+			var killer_id = 0
+			var weapon_name = "Killed"
+			if source:
+				if source.has_method("get_multiplayer_authority"):
+					killer_id = source.get_multiplayer_authority()
+				elif "owner_player" in source and source.owner_player:
+					killer_id = int(str(source.owner_player.name))
+				elif source is CharacterBody3D:
+					killer_id = int(str(source.name))
+				
+				if source.has_method("get_weapon_name"):
+					weapon_name = source.get_weapon_name()
+			nm.register_kill.rpc(-1, killer_id, weapon_name, "Target Dummy")
 	else:
 		_wiggle()