feat(acme): Add ACME interfaces for Port80Handler and refactor ChallengeResponder to use new acme-interfaces, enhancing event subscription and certificate workflows.

ts/http/port80/port80-handler.ts

@@ -550,6 +550,7 @@ export class Port80Handler extends plugins.EventEmitter {
 
     try {
       // Request certificate via ChallengeResponder
+      // The ChallengeResponder handles all ACME client interactions and will emit events
       const certData = await this.challengeResponder.requestCertificate(domain, isRenewal);
 
       // Update domain info with certificate data
@@ -559,13 +560,9 @@ export class Port80Handler extends plugins.EventEmitter {
       domainInfo.expiryDate = certData.expiryDate;
 
       console.log(`Certificate ${isRenewal ? 'renewed' : 'obtained'} for ${domain}`);
-
-      // The event will be emitted by the ChallengeResponder, we just store the certificate
     } catch (error: any) {
       const errorMsg = error instanceof Error ? error.message : String(error);
       console.error(`Error during certificate issuance for ${domain}:`, error);
-
-      // The failure event will be emitted by the ChallengeResponder
       throw new CertificateError(errorMsg, domain, isRenewal);
     } finally {
       domainInfo.obtainingInProgress = false;