feat: add image upload for health package

backend/prisma/migrations/20260518055117_health_checkup_optional_image_field/migration.sql

@@ -0,0 +1,2 @@
+-- AlterTable
+ALTER TABLE "HealthPackage" ADD COLUMN     "image" TEXT;

backend/prisma/schema.prisma

@@ -241,6 +241,7 @@ model HealthPackage {
   slug         String              @unique
   description  String?
   price        Decimal?            @db.Decimal(10, 2)
+  image        String?
   discountedPrice Decimal?         @db.Decimal(10, 2)
   
   inclusions   Json                @default("{}") 

backend/src/controllers/healthCheck.controller.js

@@ -141,6 +141,7 @@ export const createPackage = async (req, res) => {
 			slug,
 			description,
 			price,
+			image,
 			discountedPrice,
 			inclusions,
 			categoryId,
@@ -155,6 +156,7 @@ export const createPackage = async (req, res) => {
 				slug,
 				description,
 				price,
+				image,
 				discountedPrice,
 				inclusions,
 				categoryId: Number(categoryId),