redux of the worker queue

src/main.rs

@@ -14,6 +14,7 @@ use shanty_search::MusicBrainzSearch;
 use shanty_web::routes;
 use shanty_web::state::AppState;
 use shanty_web::tasks::TaskManager;
+use shanty_web::workers::WorkerManager;
 
 #[derive(Parser)]
 #[command(name = "shanty", about = "Shanty — self-hosted music management")]
@@ -128,21 +129,13 @@ async fn main() -> anyhow::Result<()> {
         config: std::sync::Arc::new(tokio::sync::RwLock::new(config)),
         config_path,
         tasks: TaskManager::new(),
+        workers: WorkerManager::new(),
         firefox_login: tokio::sync::Mutex::new(None),
-        scheduler: tokio::sync::Mutex::new(shanty_web::state::SchedulerInfo {
-            next_pipeline: None,
-            next_monitor: None,
-            skip_pipeline: false,
-            skip_monitor: false,
-        }),
     });
 
-    // Start background cookie refresh task
-    shanty_web::cookie_refresh::spawn(state.config.clone());
-
-    // Start pipeline and monitor schedulers
-    shanty_web::pipeline_scheduler::spawn(state.clone());
-    shanty_web::monitor::spawn(state.clone());
+    // Start work queue workers and unified scheduler
+    WorkerManager::spawn_all(state.clone());
+    shanty_web::scheduler::spawn(state.clone());
     shanty_web::mb_update::spawn(state.clone());
 
     // Resolve static files directory