refactor: improve structure, calc to utils

Author: prestwich

src/perms/auth.rs

@@ -4,8 +4,6 @@ use crate::utils::{
 };
 use core::num;
 
-use super::SlotCalculator;
-
 // Environment variable names for configuration
 pub(crate) const BLOCK_QUERY_CUTOFF: &str = "BLOCK_QUERY_CUTOFF";
 pub(crate) const BLOCK_QUERY_START: &str = "BLOCK_QUERY_START";