refac: API 검증시 integer(int-like)에서 is_int로 강제

hwe/sammo/API/Betting/Bet.php

@@ -23,9 +23,9 @@ class Bet extends \sammo\BaseAPI
             'bettingType',
             'amount'
         ])
-            ->rule('integer', 'bettingID')
+            ->rule('int', 'bettingID')
             ->rule('integerArray', 'bettingType')
-            ->rule('integer', 'amount')
+            ->rule('int', 'amount')
             ->rule('min', 'amount', 1);
 
         if (!$v->validate()) {

hwe/sammo/API/Betting/GetBettingDetail.php

@@ -18,7 +18,7 @@ class GetBettingDetail extends \sammo\BaseAPI
         $v->rule('required', [
             'betting_id',
         ])
-            ->rule('integer', 'betting_id');
+            ->rule('int', 'betting_id');
 
         if (!$v->validate()) {
             return $v->errorStr();