test: stabilize slow and flaky tests

src/web/login.coverage.test.ts

@@ -3,9 +3,7 @@ import os from "node:os";
 import path from "node:path";
 
 import { DisconnectReason } from "@whiskeysockets/baileys";
-import { beforeEach, describe, expect, it, vi } from "vitest";
-
-vi.useFakeTimers();
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
 
 const rmMock = vi.spyOn(fs, "rm");
 
@@ -51,9 +49,13 @@ const { loginWeb } = await import("./login.js");
 
 describe("loginWeb coverage", () => {
   beforeEach(() => {
+    vi.useFakeTimers();
     vi.clearAllMocks();
     rmMock.mockClear();
   });
+  afterEach(() => {
+    vi.useRealTimers();
+  });
 
   it("restarts once when WhatsApp requests code 515", async () => {
     waitForWaConnection