feat(email-domains): add email domain management with DNS provisioning, validation, and ops dashboard support

ts_interfaces/data/email-domain.ts

@@ -0,0 +1,73 @@
+/**
+ * DNS record validation status for a single email-related record (MX, SPF, DKIM, DMARC).
+ */
+export type TDnsRecordStatus = 'valid' | 'missing' | 'invalid' | 'unchecked';
+
+/**
+ * An email domain managed by dcrouter.
+ *
+ * Each email domain is linked to an existing dcrouter DNS domain (dcrouter-hosted
+ * or provider-managed). The DNS management path is inherited from the linked domain
+ * — no separate DNS mode is needed.
+ */
+export interface IEmailDomain {
+  id: string;
+  /** Fully qualified domain name (e.g. 'example.com'). */
+  domain: string;
+  /** ID of the linked dcrouter DNS domain — determines how DNS records are managed. */
+  linkedDomainId: string;
+  /** DKIM configuration and key state. */
+  dkim: IEmailDomainDkim;
+  /** Optional per-domain rate limits. */
+  rateLimits?: IEmailDomainRateLimits;
+  /** DNS record validation status — populated by validateDns(). */
+  dnsStatus: IEmailDomainDnsStatus;
+  createdAt: string;
+  updatedAt: string;
+}
+
+export interface IEmailDomainDkim {
+  /** DKIM selector (default: 'default'). */
+  selector: string;
+  /** RSA key size in bits (default: 2048). */
+  keySize: number;
+  /** Base64-encoded public key — populated after key generation. */
+  publicKey?: string;
+  /** Whether automatic key rotation is enabled. */
+  rotateKeys: boolean;
+  /** Days between key rotations (default: 90). */
+  rotationIntervalDays: number;
+  /** ISO date of last key rotation. */
+  lastRotatedAt?: string;
+}
+
+export interface IEmailDomainRateLimits {
+  outbound?: {
+    messagesPerMinute?: number;
+    messagesPerHour?: number;
+    messagesPerDay?: number;
+  };
+  inbound?: {
+    messagesPerMinute?: number;
+    connectionsPerIp?: number;
+    recipientsPerMessage?: number;
+  };
+}
+
+export interface IEmailDomainDnsStatus {
+  mx: TDnsRecordStatus;
+  spf: TDnsRecordStatus;
+  dkim: TDnsRecordStatus;
+  dmarc: TDnsRecordStatus;
+  lastCheckedAt?: string;
+}
+
+/**
+ * A single required DNS record for an email domain — used for display / copy-paste.
+ */
+export interface IEmailDnsRecord {
+  type: 'MX' | 'TXT';
+  name: string;
+  value: string;
+  status: TDnsRecordStatus;
+}

ts_interfaces/data/index.ts

@@ -7,4 +7,5 @@ export * from './vpn.js';
 export * from './dns-provider.js';
 export * from './domain.js';
 export * from './dns-record.js';
-export * from './acme-config.js';
+export * from './acme-config.js';
+export * from './email-domain.js';