The crowdsecurity/traefik-bouncer image was causing deployment failures.
Commented out the bouncer container and middleware references - CrowdSec
will still detect and log threats, but automatic blocking is disabled
until the bouncer is properly configured with an API key.
To enable later:
1. docker exec crowdsec cscli bouncers add traefik-bouncer
2. Add CROWDSEC_API_KEY env var
3. Uncomment bouncer container and middleware
Portainer was trying to auto-load stack.env as an env file which caused
parsing errors. Renamed to stack.env.example so users manually copy
the values into Portainer UI instead.
Also updated .env.example with cleaner format.