feat(certs): persist ACME certificates in StorageManager, add storage-backed cert manager, default storage to filesystem, and improve certificate status reporting

ts/classes.storage-cert-manager.ts

@@ -0,0 +1,46 @@
+import * as plugins from './plugins.js';
+import { StorageManager } from './storage/index.js';
+
+/**
+ * ICertManager implementation backed by StorageManager.
+ * Persists SmartAcme certificates under a /certs/ key prefix so they
+ * survive process restarts without re-hitting ACME.
+ */
+export class StorageBackedCertManager implements plugins.smartacme.ICertManager {
+  private keyPrefix = '/certs/';
+
+  constructor(private storageManager: StorageManager) {}
+
+  async init(): Promise<void> {}
+
+  async retrieveCertificate(domainName: string): Promise<plugins.smartacme.Cert | null> {
+    const data = await this.storageManager.getJSON(this.keyPrefix + domainName);
+    if (!data) return null;
+    return new plugins.smartacme.Cert(data);
+  }
+
+  async storeCertificate(cert: plugins.smartacme.Cert): Promise<void> {
+    await this.storageManager.setJSON(this.keyPrefix + cert.domainName, {
+      id: cert.id,
+      domainName: cert.domainName,
+      created: cert.created,
+      privateKey: cert.privateKey,
+      publicKey: cert.publicKey,
+      csr: cert.csr,
+      validUntil: cert.validUntil,
+    });
+  }
+
+  async deleteCertificate(domainName: string): Promise<void> {
+    await this.storageManager.delete(this.keyPrefix + domainName);
+  }
+
+  async close(): Promise<void> {}
+
+  async wipe(): Promise<void> {
+    const keys = await this.storageManager.list(this.keyPrefix);
+    for (const key of keys) {
+      await this.storageManager.delete(key);
+    }
+  }
+}