feat: initialize inventory management application with Prisma schema, QR scanning, and UI components

prisma/schema.prisma

@@ -0,0 +1,24 @@
+// This is your Prisma schema file,
+// learn more about it in the docs: https://pris.ly/d/prisma-schema
+
+// Get a free hosted Postgres database in seconds: `npx create-db`
+
+generator client {
+  provider = "prisma-client-js"
+}
+
+datasource db {
+  provider = "postgresql"
+}
+
+model InventoryItem {
+  id          String   @id @default(uuid())
+  qrCodeId    String   @unique
+  name        String
+  quantity    Int      @default(0)
+  price       Float    @default(0.0)
+  category    String?
+  description String?
+  createdAt   DateTime @default(now())
+  updatedAt   DateTime @updatedAt
+}