fix: correct index reference in SystemParam model

prisma/mongo/schema/system-param.prisma

@@ -28,7 +28,7 @@ model SystemParam {
 
   // indexes
   @@index([updateAt(sort: Desc)])
-  @@index([side, type])
+  @@index([side, dataType])
   @@unique([side, name]) // avoid duplicate key names under same side
 
   @@map("systemParams")