fix: add multi email transport system (#2942)

packages/prisma/migrations/20260604143030_add_email_transports/migration.sql

@@ -0,0 +1,28 @@
+-- CreateEnum
+CREATE TYPE "EmailTransportType" AS ENUM ('SMTP_AUTH', 'SMTP_API', 'RESEND', 'MAILCHANNELS');
+
+-- AlterTable
+ALTER TABLE "OrganisationClaim" ADD COLUMN     "emailTransportId" TEXT;
+
+-- AlterTable
+ALTER TABLE "SubscriptionClaim" ADD COLUMN     "emailTransportId" TEXT;
+
+-- CreateTable
+CREATE TABLE "EmailTransport" (
+    "id" TEXT NOT NULL,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+    "name" TEXT NOT NULL,
+    "type" "EmailTransportType" NOT NULL,
+    "fromName" TEXT NOT NULL,
+    "fromAddress" TEXT NOT NULL,
+    "config" TEXT NOT NULL,
+
+    CONSTRAINT "EmailTransport_pkey" PRIMARY KEY ("id")
+);
+
+-- AddForeignKey
+ALTER TABLE "SubscriptionClaim" ADD CONSTRAINT "SubscriptionClaim_emailTransportId_fkey" FOREIGN KEY ("emailTransportId") REFERENCES "EmailTransport"("id") ON DELETE SET NULL ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "OrganisationClaim" ADD CONSTRAINT "OrganisationClaim_emailTransportId_fkey" FOREIGN KEY ("emailTransportId") REFERENCES "EmailTransport"("id") ON DELETE SET NULL ON UPDATE CASCADE;

packages/prisma/schema.prisma

@@ -280,6 +280,9 @@ model SubscriptionClaim {
 
   apiRateLimits Json /// [RateLimitArray] @zod.custom.use(ZRateLimitArraySchema)
   apiQuota      Int?
+
+  emailTransportId String?
+  emailTransport   EmailTransport? @relation(fields: [emailTransportId], references: [id], onDelete: SetNull)
 }
 
 /// @zod.import(["import { ZClaimFlagsSchema, ZRateLimitArraySchema } from '@documenso/lib/types/subscription';"])
@@ -306,6 +309,9 @@ model OrganisationClaim {
 
   apiRateLimits Json /// [RateLimitArray] @zod.custom.use(ZRateLimitArraySchema)
   apiQuota      Int?
+
+  emailTransportId String?
+  emailTransport   EmailTransport? @relation(fields: [emailTransportId], references: [id], onDelete: SetNull)
 }
 
 model OrganisationMonthlyStat {
@@ -1136,6 +1142,32 @@ model OrganisationEmail {
   teamGlobalSettings         TeamGlobalSettings[]
 }
 
+enum EmailTransportType {
+  SMTP_AUTH
+  SMTP_API
+  RESEND
+  MAILCHANNELS
+}
+
+model EmailTransport {
+  id        String   @id
+  createdAt DateTime @default(now())
+  updatedAt DateTime @updatedAt
+
+  name String
+  type EmailTransportType
+
+  // Required from-address override (plaintext, non-secret).
+  fromName    String
+  fromAddress String
+
+  // Encrypted JSON blob of the full transport config (secrets + non-secrets).
+  config String
+
+  subscriptionClaims SubscriptionClaim[]
+  organisationClaims OrganisationClaim[]
+}
+
 model OrganisationAuthenticationPortal {
   id           String        @id
   organisation Organisation?