feat: add Payment model for yookassa integration

server/prisma/migrations/20260520124831_add_payment/migration.sql

@@ -0,0 +1,23 @@
+-- CreateTable
+CREATE TABLE "Payment" (
+    "id" TEXT NOT NULL PRIMARY KEY,
+    "orderId" TEXT NOT NULL,
+    "yookassaPaymentId" TEXT NOT NULL,
+    "status" TEXT NOT NULL,
+    "amountCents" INTEGER NOT NULL,
+    "currency" TEXT NOT NULL DEFAULT 'RUB',
+    "confirmationUrl" TEXT,
+    "expiresAt" DATETIME,
+    "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" DATETIME NOT NULL,
+    CONSTRAINT "Payment_orderId_fkey" FOREIGN KEY ("orderId") REFERENCES "Order" ("id") ON DELETE CASCADE ON UPDATE CASCADE
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "Payment_yookassaPaymentId_key" ON "Payment"("yookassaPaymentId");
+
+-- CreateIndex
+CREATE INDEX "Payment_orderId_idx" ON "Payment"("orderId");
+
+-- CreateIndex
+CREATE INDEX "Payment_yookassaPaymentId_idx" ON "Payment"("yookassaPaymentId");

server/prisma/schema.prisma

@@ -153,12 +153,30 @@ model Order {
 
   items    OrderItem[]
   messages OrderMessage[]
+  payments Payment[]
   messageReadStates UserOrderMessageReadState[]
 
   @@index([userId, createdAt])
   @@index([status, updatedAt])
 }
 
+model Payment {
+  id                String    @id @default(cuid())
+  orderId           String
+  order             Order     @relation(fields: [orderId], references: [id], onDelete: Cascade)
+  yookassaPaymentId String    @unique
+  status            String
+  amountCents       Int
+  currency          String    @default("RUB")
+  confirmationUrl   String?
+  expiresAt         DateTime?
+  createdAt         DateTime  @default(now())
+  updatedAt         DateTime  @updatedAt
+
+  @@index([orderId])
+  @@index([yookassaPaymentId])
+}
+
 model OrderItem {
   id                 String @id @default(cuid())
   qty                Int