fix(backups): подтверждать операции в текущем контексте

tests/e2e/backups-context.spec.ts

@@ -63,3 +63,32 @@ for (const phase of ["POST", "poll"]) for (const change of ["backend", "mode"])
  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)
 })
+
+for (const operation of ["delete", "restore", "download"]) for (const change of ["backend", "mode"]) for (const fails of [false, true]) test("Бэкапы: поздняя операция/" + operation + "/" + change + "/" + fails, async ({ page }) => {
+ await setupBackups(page, headers)
+ let started = false, completed = false, downloads = 0, release!: () => void; const gate = new Promise<void>(r => release = r)
+ page.on("download", () => downloads++)
+ const suffix = operation === "delete" ? "" : "/" + operation
+ await page.route("**/api/backups/backup-1" + suffix, async r => {
+  started = true; await gate
+  try {
+   if (fails) await r.fulfill({ headers, status: 503, json: { error: "СТАРАЯ ОПЕРАЦИЯ ОТКАЗАЛА" } })
+   else if (operation === "delete") await r.fulfill({ headers, status: 204 })
+   else if (operation === "restore") await r.fulfill({ headers, json: { filename: backup.filename, serverName: "СТАРЫЙ РОУТЕР" } })
+   else await r.fulfill({ headers, contentType: "text/plain", body: "old config" })
+  } catch {} finally { completed = true }
+ })
+ await page.goto("/backups")
+ const label = operation === "delete" ? "Удалить" : operation === "restore" ? "Восстановить" : "Скачать"
+ await page.getByRole("button", { name: label + " " + backup.filename, exact: true }).click()
+ if (operation !== "download") await page.getByRole("alertdialog").getByRole("button", { name: label, exact: true }).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(/СТАРАЯ ОПЕРАЦИЯ ОТКАЗАЛА|СТАРЫЙ РОУТЕР/)).toHaveCount(0)
+ await expect(page.getByText("API подтвердил удаление резервной копии", { exact: true })).toHaveCount(0)
+ await expect(page.getByRole("alertdialog")).toHaveCount(0); expect(downloads).toBe(0)
+})