Config-Based Generation of Models, Routes, and Controllers

**Objective**: Automate the generation of Mongoose models, API routes, and controllers based on a configuration object for faster backend development.

#### Description:
We need to develop a code generator that dynamically generates Mongoose models, API routes, and controllers using a predefined configuration file. This will save development time by reducing repetitive coding tasks. The servitect should be able to recreate entire codebase given the config file.

**Deliverables**:
- A fully functional generator script that, when executed, generates:
- Mongoose models in `models/`.
- Controllers in `controllers/`.
- API routes linked to the respective controllers.
- Authentication middleware in `middlewares/auth.js`.
- `.env` file with environment variables.

**Example Config Structure**:
```js
{
models: {
User: {
attributes: {
userId: { type: "ObjectId", primaryKey: true },
/* other attributes of the model */
},
routes: {
create: { method: "POST", url: "/api/users" },
/* other routes that are required for the model */
},
admin: true /* expose to admin panel */
/* other parameters like auth */

},
/* other models here */
},
config: {
env: {
MONGO_URI: "...",
/* Environment variables */
}
}
}
```

Start with the configuration example in the issue, then locate the repository's existing generator entry point; no entry point or tests are named. Done means one configuration can generate models in models/, controllers, linked API routes, middlewares/auth.js, and a .env file, while supporting the listed model and route settings.

Written by the indexing model from the issue text.