chore: migrate authifier into codebase (#658)

Co-authored-by: izzy <me@insrt.uk>
Signed-off-by: Zomatree <me@zomatree.live>
Signed-off-by: izzy <me@insrt.uk>

crates/daemons/crond/src/tasks/delete_accounts.rs

@@ -0,0 +1,23 @@
+use std::time::Duration;
+
+use revolt_database::Database;
+use revolt_result::Result;
+use tokio::time::sleep;
+
+pub async fn task(db: Database, _: revolt_database::AMQP) -> Result<()> {
+    loop {
+        let accounts = db.fetch_accounts_due_for_deletion().await?;
+        let count = accounts.len();
+
+        for mut account in accounts {
+            let mut user = db.fetch_user(&account.id).await?;
+
+            user.delete(&db).await?;
+            account.mark_deleted(&db).await?;
+        }
+
+        log::info!("Deleted {count} accounts.");
+
+        sleep(Duration::from_hours(1)).await
+    }
+}