setting base-url does not work

[miccoc-ai4i]

Describe the bug

1. setting base_url via cli does not work.
   2)when set via env variables, it is correctly set in config but the chanes are not reflected hackagent examples ollama
   this may be reflected in other attacks

To Reproduce
Steps to reproduce the behavior 1)

1. hackagent config set --base-url http://localhost:8000
2. hackagent config show --> changes not applied

Steps to reproduce the behavior 1)

1. clone hackaget-api and run docker compose -f .\docker-compose.yml --env-file .env --env-file .env.secrets up --build
2. force via env var HACKAGENT_BASE_URL='http://localhost:8000' hackagent
3. go to C:\Users\mcocca\projects\HackAgentRoot\hackagent\hackagent\router\router.py and log self.backend = backend
4. run hackagent\hackagent\examples\ollama\hack.py . You see that base_url is not sed