Initial commit: DECNET honeypot/deception network framework

Core CLI, service plugins (SSH/SMB/FTP/HTTP/RDP), Docker Compose
orchestration, MACVLAN networking, and Logstash log forwarding.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,11 @@
+.venv/
+__pycache__/
+*.pyc
+*.pyo
+*.egg-info/
+dist/
+build/
+decnet-compose.yml
+decnet-state.json
+*.ini
+.env