feat: update Recipe model to use TEXT type for description and add seed data for products

backend/prisma/migrations/20260416000000_recipe_description_text/migration.sql

@@ -0,0 +1,2 @@
+-- AlterTable
+ALTER TABLE `Recipe` MODIFY COLUMN `description` TEXT NULL;

backend/prisma/schema.prisma

@@ -63,7 +63,7 @@ model InventoryConsumption {
 model Recipe {
   id           Int                @id @default(autoincrement())
   name         String
-  description  String?
+  description  String?            @db.Text
   instructions String?            @db.Text
   imageUrl     String?
   createdAt    DateTime           @default(now())