fix(mail): align queue, outbound hostname, and DKIM selector behavior across the mail server APIs

ts/mail/core/classes.bouncemanager.ts

@@ -1,6 +1,7 @@
 import * as plugins from '../../plugins.js';
 import * as paths from '../../paths.js';
 import { logger } from '../../logger.js';
+import { hasStorageManagerMethods, type IStorageManagerLike } from '../interfaces.storage.js';
 import { SecurityLogger, SecurityLogLevel, SecurityEventType } from '../../security/index.js';
 import { RustSecurityBridge } from '../../security/classes.rustsecuritybridge.js';
 import { LRUCache } from 'lru-cache';
@@ -107,13 +108,13 @@ export class BounceManager {
     expiresAt?: number; // undefined means permanent
   }> = new Map();
   
-  private storageManager?: any; // StorageManager instance
+  private storageManager?: IStorageManagerLike;
   
   constructor(options?: {
     retryStrategy?: Partial<RetryStrategy>;
     maxCacheSize?: number;
     cacheTTL?: number;
-    storageManager?: any;
+      storageManager?: IStorageManagerLike;
   }) {
     // Set retry strategy with defaults
     if (options?.retryStrategy) {
@@ -552,7 +553,7 @@ export class BounceManager {
     try {
       const suppressionData = JSON.stringify(Array.from(this.suppressionList.entries()));
       
-      if (this.storageManager) {
+      if (hasStorageManagerMethods(this.storageManager, ['set'])) {
         // Use storage manager
         await this.storageManager.set('/email/bounces/suppression-list.json', suppressionData);
       } else {
@@ -574,7 +575,7 @@ export class BounceManager {
       let entries = null;
       let needsMigration = false;
       
-      if (this.storageManager) {
+      if (hasStorageManagerMethods(this.storageManager, ['get'])) {
         // Try to load from storage manager first
         const suppressionData = await this.storageManager.get('/email/bounces/suppression-list.json');
         
@@ -636,7 +637,7 @@ export class BounceManager {
     try {
       const bounceData = JSON.stringify(bounce, null, 2);
       
-      if (this.storageManager) {
+      if (hasStorageManagerMethods(this.storageManager, ['set'])) {
         // Use storage manager
         await this.storageManager.set(`/email/bounces/records/${bounce.id}.json`, bounceData);
       } else {
@@ -750,4 +751,4 @@ export class BounceManager {
       this.cleanupInterval = undefined;
     }
   }
-}
+}