feat(gateway): verify Kakao account ownership

packages/infra/scripts/fixtures/gateway-migration.config.mjs

@@ -0,0 +1,7 @@
+import { defineConfig } from 'prisma/config';
+
+export default defineConfig({
+    schema: './gateway.prisma',
+    migrations: { path: './gateway-migrations' },
+    datasource: { url: process.env.GATEWAY_DATABASE_URL },
+});