cleaned up update.rs eco and corp

src/corporate/helpers.rs

@@ -1,7 +1,6 @@
 // src/corporate/helpers.rs
 use super::types::*;
 use chrono::{Local, NaiveDate};
-use std::collections::{HashMap, HashSet};
 use rand::rngs::StdRng;
 use rand::prelude::{Rng, SeedableRng, IndexedRandom};
 
@@ -74,7 +73,7 @@ pub fn parse_yahoo_date(s: &str) -> anyhow::Result<NaiveDate> {
 /// Send-safe random range
 pub fn random_range(min: u64, max: u64) -> u64 {
     let mut rng = StdRng::from_rng(&mut rand::rng());
-    rng.gen_range(min..max)
+    rng.random_range(min..max)
 }
 
 /// Send-safe random choice