chore: Refactor worker, emails and data cleanup to task system (#3337)

* Refactor worker, all emails on task system

* fix

* lint

* fix: Remove a bunch of expect-error comments in related tests

* refactor: Move work from utils.gc into tasks

* test

* Add tracing to tasks and processors
fix: DebounceProcessor triggering on all events
Event.add -> Event.schedule

server/routes/api/documents.ts

@@ -1024,7 +1024,7 @@ router.post("documents.update", auth(), async (ctx) => {
   }
 
   if (document.title !== previousTitle) {
-    Event.add({
+    Event.schedule({
       name: "documents.title_change",
       documentId: document.id,
       collectionId: document.collectionId,