added sqlite

backend/app/prisma/schema.prisma

@@ -0,0 +1,24 @@
+generator client {
+  provider = "prisma-client"
+  output   = "../generated/prisma"
+  previewFeatures = ["driverAdapters"]
+}
+
+datasource db {
+  provider = "sqlite"
+}
+
+generator prismabox { 
+  provider = "prismabox"
+  typeboxImportDependencyName = "elysia"
+  typeboxImportVariableName = "t"
+  inputModel = true
+  output   = "../generated/prismabox"
+} 
+
+model User {
+  id       String @id @default(cuid())
+  email    String @unique
+  username String @unique
+}
+