Add promptTokens and completionTokens to model output (#11)

* Default to streaming in config

* Add tokens to database

* Add NEXT_PUBLIC_SOCKET_URL to .env.example

* Disable streaming for functions

* Add newline to types

prisma/schema.prisma

@@ -82,6 +82,9 @@ model ModelOutput {
     errorMessage   String?
     timeToComplete Int  @default(0)
 
+    promptTokens     Int? // Added promptTokens field
+    completionTokens Int? // Added completionTokens field
+
     promptVariantId String        @db.Uuid
     promptVariant   PromptVariant @relation(fields: [promptVariantId], references: [id], onDelete: Cascade)