feat: adjust data type

prisma/schema.prisma

@@ -2,6 +2,10 @@ generator client {
   provider = "prisma-client-js"
 }
 
+generator kysely {
+  provider = "prisma-kysely"
+}
+
 datasource db {
   provider = "postgresql"
   url      = env("DATABASE_URL")
@@ -644,9 +648,9 @@ model Product {
   name          String
   detail        String
   process       Int
-  price         Int
-  agentPrice    Int
-  serviceCharge Int
+  price         Float
+  agentPrice    Float
+  serviceCharge Float
 
   status      Status @default(CREATED)
   statusOrder Int    @default(0)