fix: Size estimation being off by 1024

Signed-off-by: Dheshan Mohandass <dmohandass@mgh.harvard.edu>

Author: dheshanm

src/bin/estimate/main.rs

@@ -69,7 +69,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
  FROM directories d
  INNER JOIN directory_tree dt ON d.parent_id = dt.directory_id
  )
- SELECT COALESCE(SUM(f.size), 0) / 1024 AS total_size
+ SELECT COALESCE(SUM(f.size), 0) AS total_size
  FROM files f
  WHERE f.directory_id IN (SELECT directory_id FROM directory_tree)
  "#