posted at for sorting

prisma/schema.prisma

@@ -27,6 +27,7 @@ model Attachment {
 
     createdAt  DateTime @default(now())
     updatedAt  DateTime @default(now())
+    postedAt   DateTime
 
     @@index([channelId])
     @@map("attachments")
@@ -38,6 +39,12 @@ model Meme {
     text       String
     tags       Json
 
+    // need an timestamp for giving to meili to sort by
+    // i think a usize would actually work but can't
+    // convince the meili-js lib to serialize it properly to json
+    // this one actually has to be .valueOf()'d before we send it
+    // cause js numbers are bigger than postgres int4
+    postedAt   DateTime
     createdAt  DateTime @default(now())
     updatedAt  DateTime @default(now())