feat: initialize Express application with middleware and routes

- Set up Express application in src/app.ts with CORS, JSON parsing, and logging.
- Implement health check route.
- Add authentication, product, and order routes.
- Create error handling middleware for centralized error management.

feat: add authentication middleware with placeholder endpoints

- Implement /register and /login routes in src/middleware/auth.middleware.ts with 501 status responses.

feat: create error handling middleware

- Add error handling middleware in src/middleware/error.middleware.ts to manage errors and send appropriate responses.

feat: implement server startup logic

- Create server entry point in src/server.ts to connect to the database and start the Express server.

feat: add JWT utility functions for token signing and verification

- Implement JWT signing and verification functions in src/utils/jwt.ts with payload interface for user roles.

package.json

@@ -18,18 +18,25 @@
   "license": "ISC",
   "packageManager": "[email protected]",
   "dependencies": {
+    "cors": "^2.8.5",
     "dotenv": "^17.2.3",
     "express": "^5.2.1",
-    "mongoose": "^9.1.3"
+    "express-rate-limit": "^8.2.1",
+    "mongoose": "^9.1.3",
+    "morgan": "^1.10.1"
   },
   "devDependencies": {
     "@eslint/js": "^9.39.2",
     "@eslint/json": "^0.14.0",
     "@eslint/markdown": "^7.5.1",
+    "@types/cors": "^2.8.19",
     "@types/express": "^5.0.6",
+    "@types/jsonwebtoken": "^9.0.10",
+    "@types/morgan": "^1.9.10",
     "@types/node": "^25.0.6",
     "eslint": "^9.39.2",
     "globals": "^17.0.0",
+    "jsonwebtoken": "^9.0.3",
     "nodemon": "^3.1.11",
     "prettier": "^3.7.4",
     "ts-node": "^10.9.2",