chore: update environment configuration and Docker setup

- Added .env.example file for environment variable documentation
- Refactored docker-compose.yml to use environment variables for API URLs
- Updated TypeScript configuration to use NodeNext module resolution

README.md

@@ -42,19 +42,7 @@ npm install
 
 3. Set up environment variables:
 
-Create a `.env` file in the `apps/api` directory:
-
-```
-DATABASE_URL="mysql://root:password@localhost:3306/unreal_chat"
-JWT_SECRET="your-secret-key"
-```
-
-Create a `.env` file in the `apps/web` directory:
-
-```
-VITE_API_URL=http://localhost:4000/graphql
-VITE_WS_URL=ws://localhost:4000/graphql
-```
+Copy the `.env.example` file to `.env`, then update the values as needed.
 
 4. Initialize the database: