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/queues/tasks/CleanupExpiredFileOperationsTask.test.ts

@@ -0,0 +1,56 @@
+import { subDays } from "date-fns";
+import { FileOperation } from "@server/models";
+import { buildFileOperation } from "@server/test/factories";
+import { flushdb } from "@server/test/support";
+import CleanupExpiredFileOperationsTask from "./CleanupExpiredFileOperationsTask";
+
+beforeEach(() => flushdb());
+
+describe("CleanupExpiredFileOperationsTask", () => {
+  it("should expire exports older than 30 days ago", async () => {
+    await buildFileOperation({
+      type: "export",
+      state: "complete",
+      createdAt: subDays(new Date(), 30),
+    });
+    await buildFileOperation({
+      type: "export",
+      state: "complete",
+    });
+
+    /* This is a test helper that creates a new task and runs it. */
+    const task = new CleanupExpiredFileOperationsTask();
+    await task.perform({ limit: 100 });
+
+    const data = await FileOperation.count({
+      where: {
+        type: "export",
+        state: "expired",
+      },
+    });
+    expect(data).toEqual(1);
+  });
+
+  it("should not expire exports made less than 30 days ago", async () => {
+    await buildFileOperation({
+      type: "export",
+      state: "complete",
+      createdAt: subDays(new Date(), 29),
+    });
+    await buildFileOperation({
+      type: "export",
+      state: "complete",
+    });
+
+    const task = new CleanupExpiredFileOperationsTask();
+    await task.perform({ limit: 100 });
+
+    const data = await FileOperation.count({
+      where: {
+        type: "export",
+        state: "expired",
+      },
+    });
+    expect(data).toEqual(0);
+  });
+});