Docker Compose prefixes network names with the project directory name
(e.g. 'headquarter_backend' instead of 'backend'). The previous code
hardcoded 'backend', causing 'network not found' errors.
- apps/api/src/services/docker.py: add get_backend_network_name() that
inspects the API container (hq-api) to find the actual network name
- apps/api/src/services/docker.py: connect_container_to_network() now
auto-detects the network name when not explicitly provided
- apps/api/src/services/tunnel.py: import and use get_backend_network_name()
- apps/api/src/api/tool_instances.py: remove explicit 'backend' arg from
connect_container_to_network() call
Quality gates: ruff clean
alex
cc52811522