feat(gateway): stream release progress logs

packages/infra/prisma/gateway-migrations/20260809000000_add_gateway_release_logs/migration.sql

@@ -0,0 +1,16 @@
+CREATE TABLE "gateway_release_log" (
+    "id" BIGSERIAL NOT NULL,
+    "operation_id" TEXT NOT NULL,
+    "level" TEXT NOT NULL,
+    "phase" TEXT NOT NULL,
+    "message" TEXT NOT NULL,
+    "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+
+    CONSTRAINT "gateway_release_log_pkey" PRIMARY KEY ("id"),
+    CONSTRAINT "gateway_release_log_operation_id_fkey"
+        FOREIGN KEY ("operation_id") REFERENCES "gateway_release_operation"("id")
+        ON DELETE CASCADE ON UPDATE CASCADE
+);
+
+CREATE INDEX "gateway_release_log_operation_id_id_idx"
+    ON "gateway_release_log" ("operation_id", "id");

packages/infra/prisma/gateway.prisma

@@ -321,12 +321,26 @@ model GatewayReleaseOperation {
   attempts          Int                         @default(0)
   createdAt         DateTime                    @default(now()) @map("created_at")
   updatedAt         DateTime                    @updatedAt @map("updated_at")
+  logs              GatewayReleaseLog[]
 
   @@index([status, leaseUntil, createdAt])
   @@index([createdAt])
   @@map("gateway_release_operation")
 }
 
+model GatewayReleaseLog {
+  id          BigInt                  @id @default(autoincrement())
+  operationId String                  @map("operation_id")
+  level       String
+  phase       String
+  message     String                  @db.Text
+  createdAt   DateTime                @default(now()) @map("created_at")
+  operation   GatewayReleaseOperation @relation(fields: [operationId], references: [id], onDelete: Cascade)
+
+  @@index([operationId, id])
+  @@map("gateway_release_log")
+}
+
 model SystemSetting {
   id                  Int       @id @default(1) @map("no")
   registrationEnabled Boolean   @default(false) @map("registration_enabled")