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

ts/classes.dcrouter.ts

@@ -13,6 +13,7 @@ import {
 import { logger } from './logger.js';
 // Import storage manager
 import { StorageManager, type IStorageConfig } from './storage/index.js';
+import { StorageBackedCertManager } from './classes.storage-cert-manager.js';
 // Import cache system
 import { CacheDb, CacheCleaner, type ICacheDbOptions } from './cache/index.js';
 
@@ -204,7 +205,14 @@ export class DcRouter {
     this.options = {
       ...optionsArg
     };
-    
+
+    // Default storage to filesystem if not configured
+    if (!this.options.storage) {
+      this.options.storage = {
+        fsPath: plugins.path.join(paths.dcrouterHomeDir, 'storage'),
+      };
+    }
+
     // Initialize storage manager
     this.storageManager = new StorageManager(this.options.storage);
   }
@@ -437,14 +445,33 @@ export class DcRouter {
       const smartProxyConfig: plugins.smartproxy.ISmartProxyOptions = {
         ...this.options.smartProxyConfig,
         routes,
-        acme: acmeConfig
+        acme: acmeConfig,
+        certStore: {
+          loadAll: async () => {
+            const keys = await this.storageManager.list('/proxy-certs/');
+            const certs: Array<{ domain: string; publicKey: string; privateKey: string; ca?: string }> = [];
+            for (const key of keys) {
+              const data = await this.storageManager.getJSON(key);
+              if (data) certs.push(data);
+            }
+            return certs;
+          },
+          save: async (domain: string, publicKey: string, privateKey: string, ca?: string) => {
+            await this.storageManager.setJSON(`/proxy-certs/${domain}`, {
+              domain, publicKey, privateKey, ca,
+            });
+          },
+          remove: async (domain: string) => {
+            await this.storageManager.delete(`/proxy-certs/${domain}`);
+          },
+        },
       };
       
       // If we have DNS challenge handlers, create SmartAcme and wire to certProvisionFunction
       if (challengeHandlers.length > 0) {
         this.smartAcme = new plugins.smartacme.SmartAcme({
           accountEmail: acmeConfig?.accountEmail || this.options.tls?.contactEmail || 'admin@example.com',
-          certManager: new plugins.smartacme.certmanagers.MemoryCertManager(),
+          certManager: new StorageBackedCertManager(this.storageManager),
           environment: 'production',
           challengeHandlers: challengeHandlers,
           challengePriority: ['dns-01'],