- Fix key derivation in both sdk/agent.go and internal/vl1/noise.go:
sort public keys before hashing, use shared key for send/recv
- Adjust docker-compose port mappings to 7150-7153 range (within 7000-7200)
- Add GOPROXY env to Dockerfiles for Go module download in restricted networks
- Verified: all 3 clients connect with 2 peers each, zero decrypt errors
- Add docker-compose.yml with server + init + 3 clients + tester
- Add Dockerfile.server (CGO multi-stage) and Dockerfile.client
- Add .dockerignore for efficient builds
- Add cmd/testclient/main.go: full E2E test binary using SDK
- Fix agent handshake loop: only respond to new handshakes
- Add tapInterface.SetMAC() to match agent's generated MAC
- Call SetMAC() in agent SetTAPIP to fix ARP resolution
- Add data-plane debug logging for troubleshooting
- Change config database path to /tmp/data/ for container use
- Add SetMAC stub for non-Linux builds
