fix(ui): подтверждать переключение проб через API

tests/e2e/uptime-links.spec.ts

@@ -268,3 +268,38 @@ for (const speed of [false, true]) {
     await expect(dialog).toBeVisible()
   })
 }
+
+for (const speed of [false, true]) {
+  test(`переключение ${speed ? "Speed" : "Ping"}: ожидание API, отказ, повтор без потери состояния`, async ({ page }) => {
+    await setup(page, "/uptime?probe=p1", 0, false, "mm:uptime:write")
+    await page.getByRole("button", { name: "Пауза", exact: true }).click()
+    if (speed) await page.getByRole("button", { name: /Скорость/ }).click()
+    let calls = 0
+    let fail = true
+    let release!: () => void
+    const pending = new Promise<void>(resolve => { release = resolve })
+    await page.route(speed ? "**/api/uptime/speed-probes" : "**/api/uptime/probes", async route => {
+      if (route.request().method() !== "PUT") return route.fallback()
+      calls++
+      expect(route.request().postDataJSON().probes[0].enabled).toBe(false)
+      if (fail) await pending
+      await route.fulfill({ status: fail ? 403 : 200, json: fail ? { error: "Forbidden" } : { ok: true } })
+    })
+    const toggle = page.getByRole("switch")
+    await expect(toggle).toBeChecked()
+    await toggle.click()
+    await expect(toggle).toBeDisabled()
+    await expect(toggle).toBeChecked()
+    await expect.poll(() => calls).toBe(1)
+    release()
+    await expect(page.getByRole("alert").filter({ hasText: "Недостаточно прав" })).toBeVisible()
+    await expect(toggle).toBeChecked()
+    await expect(toggle).toBeEnabled()
+    fail = false
+    await toggle.click()
+    await expect(toggle).not.toBeChecked()
+    await expect(toggle).toBeEnabled()
+    await expect(page.getByRole("alert").filter({ hasText: "Недостаточно прав" })).toHaveCount(0)
+    expect(calls).toBe(2)
+  })
+}