feat, refac(wip): 징병 기준을 GameUnitConstraint 기반으로 변경

hwe/sammo/GameUnitConstraint/ReqMinRelYear.php

@@ -6,7 +6,7 @@ use sammo\General;
 
 class ReqMinRelYear extends BaseGameUnitConstraint {
 
-    public function __construct(protected int $reqMinRelYear)
+    public function __construct(public readonly int $reqMinRelYear)
     {
     }