fix(ui): сохранять контекст экспорта сертификатов IPsec

shared/api/ipsec.ts

@@ -1,4 +1,4 @@
-import { ipsecServerSummaryDtoSchema, ipsecUserCreatedSchema } from "@mmapp/contracts/ipsec"
+import { ipsecServerSummaryDtoSchema, ipsecUserCreatedSchema, ipsecCertBundleSchema } from "@mmapp/contracts/ipsec"
 import { requestJson } from "@/shared/api/http-client"
 import type {
   IpsecCertBundle,
@@ -97,17 +97,29 @@ export async function deleteIpsecUser(
   )
 }
 
+function parseExportBundle(response: unknown): IpsecCertBundle {
+  const result = ipsecCertBundleSchema.safeParse(response)
+  if (!result.success || !result.data.filename.trim() || !result.data.user.trim() ||
+      !result.data.passphrase || result.data.passphrase.length < 8 ||
+      !/^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?$/.test(result.data.contentB64) ||
+      !result.data.contentB64) {
+    throw new Error("Некорректный ответ экспорта сертификата")
+  }
+  return result.data
+}
+
 export async function exportIpsecUserCert(
   baseUrl: string,
   serverId: string,
   clientId: string,
   passphrase: string,
 ): Promise<IpsecCertBundle> {
-  return requestJson<IpsecCertBundle>(
+  const response = await requestJson<unknown>(
     baseUrl,
     `/api/ipsec/users/${encodeURIComponent(serverId)}/${encodeURIComponent(clientId)}/cert`,
     { method: "POST", body: JSON.stringify({ passphrase }) },
   )
+  return parseExportBundle(response)
 }
 
 export async function exportIpsecCertByName(
@@ -116,11 +128,12 @@ export async function exportIpsecCertByName(
   name: string,
   passphrase: string,
 ): Promise<IpsecCertBundle> {
-  return requestJson<IpsecCertBundle>(
+  const response = await requestJson<unknown>(
     baseUrl,
     `/api/ipsec/certs/${encodeURIComponent(serverId)}/export`,
     { method: "POST", body: JSON.stringify({ name, passphrase }) },
   )
+  return parseExportBundle(response)
 }
 
 export async function restoreIpsecRevision(