feat: harden sessions and track downstream acknowledgements

api/prisma/migrations/20260714130000_add_downstream_delivery_ack_tracking/migration.sql

@@ -0,0 +1,32 @@
+ALTER TABLE "SmsApplication"
+  ADD COLUMN "downstreamReceiptRetryEnabled" BOOLEAN NOT NULL DEFAULT true,
+  ADD COLUMN "downstreamUplinkRetryEnabled" BOOLEAN NOT NULL DEFAULT true;
+
+ALTER TABLE "CmppDownstreamDelivery"
+  ADD COLUMN "retryEnabled" BOOLEAN NOT NULL DEFAULT true,
+  ADD COLUMN "sentAt" TIMESTAMP(3),
+  ADD COLUMN "acknowledgedAt" TIMESTAMP(3),
+  ADD COLUMN "ackDeadlineAt" TIMESTAMP(3),
+  ADD COLUMN "ackResult" INTEGER,
+  ADD COLUMN "ackSequenceId" TEXT,
+  ADD COLUMN "ackMessageId" TEXT,
+  ADD COLUMN "connectionId" TEXT;
+
+UPDATE "CmppDownstreamDelivery"
+SET
+  "status" = 'unconfirmed',
+  "sentAt" = "deliveredAt",
+  "deliveredAt" = NULL,
+  "lastError" = '历史记录仅确认 Gateway 已写出，未留存 CMPP_DELIVER_RESP'
+WHERE "status" = 'delivered';
+
+UPDATE "CmppDownstreamDelivery"
+SET "retryEnabled" = CASE
+  WHEN "deliveryType" = 'uplink' THEN app."downstreamUplinkRetryEnabled"
+  ELSE app."downstreamReceiptRetryEnabled"
+END
+FROM "SmsApplication" app
+WHERE app.id = "CmppDownstreamDelivery"."applicationId";
+
+CREATE INDEX "CmppDownstreamDelivery_status_ackDeadlineAt_idx"
+  ON "CmppDownstreamDelivery"("status", "ackDeadlineAt");

api/prisma/schema.prisma

@@ -360,6 +360,8 @@ model SmsApplication {
   queuePriority         String   @default("normal")
   maxPhonesPerTask      Int      @default(1000000)
   templateMismatchMode  String   @default("reject")
+  downstreamReceiptRetryEnabled Boolean @default(true)
+  downstreamUplinkRetryEnabled  Boolean @default(true)
   status                String   @default("active")
   createdAt             DateTime @default(now())
   updatedAt             DateTime @updatedAt
@@ -1188,8 +1190,16 @@ model CmppDownstreamDelivery {
   deliveryType    String
   status          String   @default("pending")
   payload         Json
+  retryEnabled    Boolean  @default(true)
   retryCount      Int      @default(0)
   nextRetryAt     DateTime?
+  sentAt          DateTime?
+  acknowledgedAt  DateTime?
+  ackDeadlineAt   DateTime?
+  ackResult       Int?
+  ackSequenceId   String?
+  ackMessageId    String?
+  connectionId    String?
   deliveredAt     DateTime?
   lastError       String?
   createdAt       DateTime @default(now())
@@ -1204,6 +1214,7 @@ model CmppDownstreamDelivery {
   @@index([messageId])
   @@index([messageRecordId])
   @@index([deliveryType, status])
+  @@index([status, ackDeadlineAt])
 }
 
 model GatewaySubmitDeadLetter {