feat: add JWT secret configuration to README and update server port variable

Author: ashwin31

README.md

@@ -91,6 +91,11 @@ Create a `.env` file based on the following template:
 # Database Configuration
 DATABASE_URL="postgresql://postgres:password@localhost:5432/bottlecrm?schema=public"
 
+# JWT Secret (required for authentication)
+# Generate a secure secret using openssl:
+#   openssl rand -base64 32
+JWT_SECRET="<your-generated-secret>"
+
 # Google OAuth (Optional)
 GOOGLE_CLIENT_ID=""
 GOOGLE_CLIENT_SECRET=""

server.js

@@ -20,7 +20,7 @@ dotenv.config();
 
 const app = express();
 const logger = createLogger();
-const PORT = process.env.API_PORT || 3001;
+const PORT = process.env.PORT || 3001;
 
 // Trust proxy setting for rate limiting
 app.set('trust proxy', 1);