fix(backups): продолжать наблюдение без повторного создания

tests/e2e/backups-context.spec.ts

@@ -1,4 +1,5 @@
 import { test, expect } from "@playwright/test"
+import { openBackup, backupJob, backupAck } from "./fixtures/backup-job"
 import { backup, setupBackups } from "./fixtures/backups"
 const headers = { "access-control-allow-origin": "*", "access-control-allow-methods": "GET,POST,PUT,DELETE,OPTIONS", "access-control-allow-headers": "Content-Type,Authorization" }
 for (const change of ["backend", "mode"]) for (const fails of [false, true]) test("Бэкапы: позднее чтение/" + change + "/" + fails, async ({ page }) => {
@@ -36,3 +37,29 @@ for (const kind of ["schedule", "storage"]) for (const fails of [false, true]) t
  await expect(page.getByText(/СТАРОЕ СОХРАНЕНИЕ БЭКАПА/)).toHaveCount(0)
  await expect(page.getByText(kind === "schedule" ? "Расписание сохранено" : "Хранилище сохранено", { exact: true })).toHaveCount(0)
 })
+
+for (const phase of ["POST", "poll"]) for (const change of ["backend", "mode"]) for (const fails of [false, true]) test("Бэкапы: поздний job/" + phase + "/" + change + "/" + fails, async ({ page }) => {
+ await setupBackups(page, headers)
+ let id = "", started = false, completed = false, release!: () => void; const gate = new Promise<void>(r => release = r)
+ await page.route("**/api/backups/create", async r => {
+  id = r.request().postDataJSON().requestId
+  if (phase !== "POST") return r.fulfill({ headers, status: 202, json: backupAck(id) })
+  started = true; await gate
+  try { await r.fulfill(fails ? { headers, status: 503, json: { error: "СТАРЫЙ JOB ОТКАЗ" } } : { headers, status: 202, json: backupAck(id) }) } catch {} finally { completed = true }
+ })
+ await page.route("**/api/backups/jobs/*", async r => {
+  if (phase !== "poll") return r.fulfill({ headers, json: backupJob(id) })
+  started = true; await gate
+  try { await r.fulfill(fails ? { headers, status: 503, json: { error: "СТАРЫЙ JOB ОТКАЗ" } } : { headers, json: backupJob(id) }) } catch {} finally { completed = true }
+ })
+ const dialog = await openBackup(page); await dialog.getByRole("button", { name: /Снять бэкап/ }).click(); await expect.poll(() => started).toBe(true)
+ await page.goto("/settings")
+ if (change === "backend") { const input = page.getByPlaceholder("http://localhost:8000"); await input.fill("http://localhost:8101"); await input.press("Enter") }
+ else await page.getByRole("button", { name: "Моковые", exact: true }).click()
+ await page.goto("/backups"); release(); await expect.poll(() => completed).toBe(true)
+ if (change === "backend") await expect(page.getByText(backup.filename, { exact: true })).toBeVisible()
+ else await expect(page.getByText("Демонстрационные данные. Операции и сохранение недоступны.", { exact: true })).toBeVisible()
+ await expect(page.getByText(/СТАРЫЙ JOB ОТКАЗ/)).toHaveCount(0)
+ await expect(page.getByText("API подтвердил создание всех резервных копий", { exact: true })).toHaveCount(0)
+ await expect(page.getByRole("button", { name: "Задача резервного копирования", exact: true })).toHaveCount(0)
+})