feat(db): add ItemPrice pricebook table keyed by item code

prisma/migrations/20260926192617_add_item_price_table/migration.sql

@@ -0,0 +1,17 @@
+-- CreateTable
+CREATE TABLE "ItemPrice" (
+    "id" SERIAL NOT NULL,
+    "ndc" TEXT NOT NULL,
+    "unitPrice" MONEY NOT NULL,
+    "enteredById" INTEGER NOT NULL,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "ItemPrice_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "ItemPrice_ndc_key" ON "ItemPrice"("ndc");
+
+-- AddForeignKey
+ALTER TABLE "ItemPrice" ADD CONSTRAINT "ItemPrice_enteredById_fkey" FOREIGN KEY ("enteredById") REFERENCES "User"("id") ON DELETE RESTRICT ON UPDATE CASCADE;

prisma/schema.prisma

@@ -138,6 +138,7 @@ model User {
   wishlists              Wishlist[]
   invite                 UserInvite?
   notifications          Notification[]
+  itemPrices             ItemPrice[]
 
   streamUserId    String? @unique
   streamUserToken String? @unique
@@ -243,6 +244,22 @@ model LineItem {
   allocation Allocation? @relation
 }
 
+// Pricebook: one row per item code (NDC) holding the price entered by a staff
+// member, when it was entered, and who entered it. No price history is kept
+// (offers store their own copy of the price they used via LineItem.unitPrice).
+model ItemPrice {
+  id Int @id @default(autoincrement())
+
+  ndc       String  @unique // item code = the identity of the item
+  unitPrice Decimal @db.Money
+
+  enteredById Int
+  enteredBy   User @relation(fields: [enteredById], references: [id])
+
+  createdAt DateTime @default(now())
+  updatedAt DateTime @updatedAt
+}
+
 model ItemEmbedding {
   id            Int      @id @default(autoincrement())
   generalItemId Int?     @unique

scripts/clear.ts

@@ -54,6 +54,7 @@ async function run() {
     await tx.donorOffer.deleteMany();
     await tx.distribution.deleteMany();
     await tx.signOff.deleteMany();
+    await tx.itemPrice.deleteMany();
     await tx.user.deleteMany();
     await tx.userInvite.deleteMany();
     await tx.generalItem.deleteMany();

scripts/seed.ts

@@ -133,6 +133,7 @@ async function buildSeedData() {
   await db.userInvite.deleteMany();
   await db.notification.deleteMany();
   await db.passwordResetToken.deleteMany();
+  await db.itemPrice.deleteMany();
   await db.user.deleteMany();
   await db.tag.deleteMany();