feat: Add dedicated received type

packages/db/prisma/migrations/20260218151425_add_received_email_status/migration.sql

@@ -0,0 +1,2 @@
+-- AlterEnum
+ALTER TYPE "EmailStatus" ADD VALUE 'RECEIVED';

packages/db/prisma/schema.prisma

@@ -759,6 +759,7 @@ enum EmailStatus {
   SENDING // Currently being sent
   SENT // Successfully sent to provider
   DELIVERED // Confirmed delivered
+  RECEIVED // Received by platform (inbound)
   OPENED // Recipient opened email
   CLICKED // Recipient clicked link
   BOUNCED // Bounced (hard or soft)

packages/types/src/api/activity.ts

@@ -9,6 +9,7 @@ export enum ActivityType {
   EVENT_TRIGGERED = 'event.triggered',
   EMAIL_SENT = 'email.sent',
   EMAIL_DELIVERED = 'email.delivered',
+  EMAIL_RECEIVED = 'email.received',
   EMAIL_OPENED = 'email.opened',
   EMAIL_CLICKED = 'email.clicked',
   EMAIL_BOUNCED = 'email.bounced',