feat(redeem): 核销记录标记扫码/手机号并支持方式统计

落库 RedeemChannel，门店记录页增加统计按钮，HQ 可按方式筛选。

Co-authored-by: Cursor <cursoragent@cursor.com>

server/dukang-api/prisma/schema.prisma

@@ -52,6 +52,12 @@ enum RedeemPendingStatus {
   REJECTED
 }
 
+/// Redeem channel: SCAN or PHONE
+enum RedeemChannel {
+  SCAN
+  PHONE
+}
+
 enum ResourceMediaType {
   IMAGE
   VIDEO
@@ -1318,14 +1324,16 @@ model BenefitCoupon {
 }
 
 model RedeemRecord {
-  id           BigInt   @id @default(autoincrement()) @db.UnsignedBigInt
-  redeemNo     String   @unique @map("redeem_no") @db.VarChar(32)
-  userId       BigInt   @map("user_id") @db.UnsignedBigInt
-  couponId     BigInt   @map("coupon_id") @db.UnsignedBigInt
-  storeId      BigInt   @map("store_id") @db.UnsignedBigInt
-  amount       Decimal  @db.Decimal(10, 2)
-  settleAmount Decimal  @map("settle_amount") @db.Decimal(10, 2)
-  createdAt    DateTime @default(now()) @map("created_at") @db.DateTime(3)
+  id           BigInt        @id @default(autoincrement()) @db.UnsignedBigInt
+  redeemNo     String        @unique @map("redeem_no") @db.VarChar(32)
+  userId       BigInt        @map("user_id") @db.UnsignedBigInt
+  couponId     BigInt        @map("coupon_id") @db.UnsignedBigInt
+  storeId      BigInt        @map("store_id") @db.UnsignedBigInt
+  amount       Decimal       @db.Decimal(10, 2)
+  settleAmount Decimal       @map("settle_amount") @db.Decimal(10, 2)
+  /// SCAN=qrcode, PHONE=phone
+  channel      RedeemChannel @default(SCAN)
+  createdAt    DateTime      @default(now()) @map("created_at") @db.DateTime(3)
 
   user         User                     @relation(fields: [userId], references: [id], onDelete: Restrict)
   coupon       BenefitCoupon            @relation(fields: [couponId], references: [id], onDelete: Restrict)
@@ -1336,6 +1344,7 @@ model RedeemRecord {
   allocations  RedeemRecordAllocation[]
 
   @@index([storeId, createdAt])
+  @@index([storeId, channel, createdAt])
   @@map("user_redeem_record")
 }