feat: PantryItem (Baslager) - tabell, backend-modul och frontend-sida

backend/prisma/migrations/20260415100000_add_pantry_item/migration.sql

@@ -0,0 +1,13 @@
+-- CreateTable
+CREATE TABLE `PantryItem` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `productId` INTEGER NOT NULL,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    UNIQUE INDEX `PantryItem_productId_key`(`productId`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- AddForeignKey
+ALTER TABLE `PantryItem` ADD CONSTRAINT `PantryItem_productId_fkey` FOREIGN KEY (`productId`) REFERENCES `Product`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;