feat: add beer style likes

src/services/BeerStyleLike/findBeerStyleLikeById.ts

@@ -0,0 +1,16 @@
+import DBClient from '@/prisma/DBClient';
+
+interface FindBeerStyleLikeByIdArgs {
+  beerStyleId: string;
+  likedById: string;
+}
+const findBeerStyleLikeById = async ({
+  beerStyleId,
+  likedById,
+}: FindBeerStyleLikeByIdArgs) => {
+  return DBClient.instance.beerStyleLike.findFirst({
+    where: { beerStyleId, likedById },
+  });
+};
+
+export default findBeerStyleLikeById;