Conpot is a third-party app with its own Python logger — it never calls
decnet_logging. Added entrypoint.py as a subprocess wrapper that:
- Launches conpot and captures its stdout/stderr
- Classifies each line (startup/request/warning/error/log)
- Extracts source IPs via regex
- Emits RFC 5424 syslog lines to stdout for Docker/collector pickup
Entrypoint is self-contained (no import of shared decnet_logging.py)
because the conpot base image runs Python 3.6, which cannot parse the
dict[str, Any] / str | None type syntax used in the canonical file.
