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/models/Event.ts

@@ -86,9 +86,9 @@ class Event extends BaseModel {
   @Column(DataType.UUID)
   teamId: string;
 
-  // add can be used to send events into the event system without recording them
-  // in the database or audit trail
-  static add(event: Partial<Event>) {
+  // Schedule can be used to send events into the event system without recording
+  // them in the database or audit trail – consider using a task instead.
+  static schedule(event: Partial<Event>) {
     const now = new Date();
     globalEventQueue.add(
       this.build({