Adds pytest coverage for flock_tap.py's parsing, classification, and
byte/FRP/cloud-IP accounting, plus a .gitignore for Python caches and
capture/scan output artifacts.
The packet-level tests double as regression guards for the recently fixed
detection bugs (FRP auth-payload firing on data segments not just SYN,
no bytes_up inflation, and known-Flock-IP correlation); they fail against
the pre-fix code and pass after it. scapy-dependent tests skip cleanly when
scapy is unavailable.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
leetcrypt