refactor(acme-cloudflare): enhance upsertARecord and syncCertificateDomainRecords functions

Updated the upsertARecord function to return status messages ("updated", "created", "skipped_cname") instead of void, improving clarity on record handling. Modified syncCertificateDomainRecords to collect and return skipped CNAME records, enhancing error handling and feedback during DNS operations.

backend/src/services/acme-cloudflare.ts

@@ -161,11 +161,11 @@ async function listDnsRecordsByName(token: string, zoneId: string, fqdn: string)
   )
 }
 
-async function upsertARecord(token: string, zoneId: string, fqdn: string, ip: string): Promise<void> {
+async function upsertARecord(token: string, zoneId: string, fqdn: string, ip: string): Promise<"updated" | "created" | "skipped_cname"> {
   const records = await listDnsRecordsByName(token, zoneId, fqdn)
   const existingA = records.find((record) => record.type === "A")
   if (existingA) {
-    if (existingA.content === ip) return
+    if (existingA.content === ip) return "updated"
     await cloudflareRequest<CfDnsRecord>(token, `/zones/${zoneId}/dns_records/${existingA.id}`, {
       method: "PATCH",
       body: JSON.stringify({
@@ -176,11 +176,12 @@ async function upsertARecord(token: string, zoneId: string, fqdn: string, ip: st
         proxied: false,
       }),
     })
-    return
+    return "updated"
   }
 
+  // CNAME на CN/SAN (алиас на канонический хост) — норма; A конфликтует с CNAME и для DNS-01 не нужен
   if (records.some((record) => record.type === "CNAME")) {
-    throw new Error(`Для ${fqdn} уже есть CNAME в Cloudflare — A-запись не создана`)
+    return "skipped_cname"
   }
 
   await cloudflareRequest<{ id: string }>(token, `/zones/${zoneId}/dns_records`, {
@@ -193,6 +194,7 @@ async function upsertARecord(token: string, zoneId: string, fqdn: string, ip: st
       proxied: false,
     }),
   })
+  return "created"
 }
 
 async function syncCertificateDomainRecords(
@@ -200,11 +202,14 @@ async function syncCertificateDomainRecords(
   domains: string[],
   serverIp: string,
   defaultZoneId?: string,
-): Promise<void> {
+): Promise<{ skippedCname: string[] }> {
+  const skippedCname: string[] = []
   for (const domain of domains) {
     const zoneId = await resolveZoneId(token, domain, defaultZoneId)
-    await upsertARecord(token, zoneId, domain, serverIp)
+    const result = await upsertARecord(token, zoneId, domain, serverIp)
+    if (result === "skipped_cname") skippedCname.push(domain)
   }
+  return { skippedCname }
 }
 
 async function sleep(ms: number) {
@@ -296,9 +301,26 @@ export async function issueCertificateWithCloudflareDns(params: {
     const finalized = await client.finalizeOrder(order, csr)
     const certPem = await client.getCertificate(finalized)
 
+    // A-sync опционален: DNS-01 уже завершён. CNAME на CN (msk2 → msk-gw02) не должен валить импорт.
     const clientRos = MikrotikClient.fromServer(params.server)
-    const serverIp = await resolveServerPublicIp(params.server, clientRos)
-    await syncCertificateDomainRecords(token, domains, serverIp, settings.defaultZoneId)
+    try {
+      params.onStep?.("dns_a_sync")
+      const serverIp = await resolveServerPublicIp(params.server, clientRos)
+      const { skippedCname } = await syncCertificateDomainRecords(
+        token,
+        domains,
+        serverIp,
+        settings.defaultZoneId,
+      )
+      if (skippedCname.length > 0) {
+        params.onStep?.(
+          `dns_a_sync_skip_cname:${skippedCname.join(",")}`,
+        )
+      }
+    } catch (e) {
+      const msg = e instanceof Error ? e.message : "ошибка DNS A-sync"
+      params.onStep?.(`dns_a_sync_warn:${msg}`)
+    }
 
     const trustStores = params.trustStore.filter(Boolean)
     const effectiveTrustStores = trustStores.length > 0 ? trustStores : ["www", "api"]