feat: database

prisma/schema.prisma

@@ -0,0 +1,21 @@
+// This is your Prisma schema file,
+// learn more about it in the docs: https://pris.ly/d/prisma-schema
+
+generator client {
+    provider = "prisma-client-js"
+}
+
+datasource db {
+    provider = "mongodb"
+    url      = env("MONGO_URI")
+}
+
+model Links {
+    id     String @id @default(auto()) @map("_id") @db.ObjectId
+    userId String
+    url    String
+    slug   String @unique
+
+    @@unique([userId, url], map: "userId_url")
+    @@index(userId)
+}