refactor(core): Port external secrets config (no-changelog) (#10094)

packages/@n8n/config/src/configs/external-secrets.ts

@@ -0,0 +1,12 @@
+import { Config, Env } from '../decorators';
+
+@Config
+export class ExternalSecretsConfig {
+	/** How often (in seconds) to check for secret updates */
+	@Env('N8N_EXTERNAL_SECRETS_UPDATE_INTERVAL')
+	readonly updateInterval: number = 300;
+
+	/** Whether to prefer GET over LIST when fetching secrets from Hashicorp Vault */
+	@Env('N8N_EXTERNAL_SECRETS_PREFER_GET')
+	readonly preferGet: boolean = false;
+}

packages/@n8n/config/src/index.ts

@@ -4,6 +4,7 @@ import { DatabaseConfig } from './configs/database';
 import { EmailConfig } from './configs/email';
 import { VersionNotificationsConfig } from './configs/version-notifications';
 import { PublicApiConfig } from './configs/public-api';
+import { ExternalSecretsConfig } from './configs/external-secrets';
 
 @Config
 class UserManagementConfig {
@@ -27,4 +28,7 @@ export class GlobalConfig {
 
 	@Nested
 	publicApi: PublicApiConfig;
+
+	@Nested
+	externalSecrets: ExternalSecretsConfig;
 }