Automatically remove orphan files

moneymgr_backend/src/routines.rs

@@ -1,5 +1,5 @@
 use crate::app_config::AppConfig;
-use crate::services::tokens_service;
+use crate::services::{files_service, tokens_service};
 use std::time::Duration;
 
 /// The "cron" of the project
@@ -20,7 +20,8 @@ pub async fn main_routine() {
 }
 
 async fn exec_routine() -> anyhow::Result<()> {
-    // TODO : remove orphan attachment
+    // Remove orphan attachments
+    files_service::run_garbage_collector().await?;
 
     // Remove expired tokens
     tokens_service::cleanup().await?;