settings/security: generate paper key

crates/database/src/tables/users.rs

@@ -135,4 +135,18 @@ impl Users {
 
         Ok((query.rows_affected() == 1).then_some(()))
     }
+
+    pub async fn set_paper_key(
+        conn: impl SqliteExecutor<'_>,
+        id: &str,
+        paper_key: Option<&str>,
+    ) -> Result<Option<()>, Error> {
+        let query: SqliteQueryResult =
+            sqlx::query_file!("queries/users/set_paper_key.sql", paper_key, id)
+                .execute(conn)
+                .await
+                .map_err(handle_error)?;
+
+        Ok((query.rows_affected() == 1).then_some(()))
+    }
 }