feat: make pantry items and meal plan entries user-scoped; update related services and controllers

backend/prisma/migrations/20260422130000_user_scope_pantry_meal_plan/migration.sql

@@ -0,0 +1,25 @@
+-- PantryItem: make user-scoped
+ALTER TABLE `PantryItem` ADD COLUMN `userId` INTEGER NULL;
+
+UPDATE `PantryItem`
+SET `userId` = (SELECT `id` FROM `User` ORDER BY `id` ASC LIMIT 1)
+WHERE `userId` IS NULL;
+
+ALTER TABLE `PantryItem` DROP INDEX `PantryItem_productId_key`;
+ALTER TABLE `PantryItem` MODIFY `userId` INTEGER NOT NULL;
+ALTER TABLE `PantryItem` ADD INDEX `PantryItem_userId_idx`(`userId`);
+ALTER TABLE `PantryItem` ADD UNIQUE INDEX `PantryItem_userId_productId_key`(`userId`, `productId`);
+ALTER TABLE `PantryItem` ADD CONSTRAINT `PantryItem_userId_fkey` FOREIGN KEY (`userId`) REFERENCES `User`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- MealPlanEntry: make user-scoped
+ALTER TABLE `MealPlanEntry` ADD COLUMN `userId` INTEGER NULL;
+
+UPDATE `MealPlanEntry`
+SET `userId` = (SELECT `id` FROM `User` ORDER BY `id` ASC LIMIT 1)
+WHERE `userId` IS NULL;
+
+ALTER TABLE `MealPlanEntry` DROP INDEX `MealPlanEntry_date_key`;
+ALTER TABLE `MealPlanEntry` MODIFY `userId` INTEGER NOT NULL;
+ALTER TABLE `MealPlanEntry` ADD INDEX `MealPlanEntry_userId_idx`(`userId`);
+ALTER TABLE `MealPlanEntry` ADD UNIQUE INDEX `MealPlanEntry_userId_date_key`(`userId`, `date`);
+ALTER TABLE `MealPlanEntry` ADD CONSTRAINT `MealPlanEntry_userId_fkey` FOREIGN KEY (`userId`) REFERENCES `User`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;