register a controller after drogon run method

when we want to register a controller to the framework by parameters we can use registerController method:

https://github.com/drogonframework/drogon/blob/e2e5d6d57f26b79bab83e87d1d3596d077925603/lib/inc/drogon/HttpAppFramework.h#L632

```
class ApiTest : public drogon::HttpController
{
public:
ApiTest(const std::string &str);
...
};
```

when I use this method after `drogon::run() ` for some classes it works and for some other throws an exceptions, is there any safe way to register my controller after calling run method? (e.g. reloading DrClassMap classes, reloading routes, etc?)

aslo in here has been noted that it is not possible:

https://github.com/drogonframework/drogon/blob/e2e5d6d57f26b79bab83e87d1d3596d077925603/lib/inc/drogon/HttpAppFramework.h#L634C1-L635C1