Type the last of the forward declarations

Locals declared ahead of an assignment inside a callback were inferred
as nil at every use site.

The role event handlers are given a class so the table is not unified
with the other module handler tables.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

exp_legacy/module/modules/control/warnings.lua

@@ -107,7 +107,7 @@ function Warnings.add_warning(player, by_player_name, reason)
 
     reason = reason or "None given."
 
-    local warning_count
+    local warning_count --- @type number
     PlayerWarnings:update(player.name, function(_, warnings)
         local warning = {
             by_player_name = by_player_name,