Add 8 passive network observation modules (Phase 2)
- PacketCapture: tcpdump subprocess with zstd compression + AES-256-GCM encryption, disk auto-purge
- DNSLogger: DNS query/response parsing with DoH detection, batch SQLite writes
- TLSSNIExtractor: TLS ClientHello SNI extraction with TCP reassembly for fragments
- CredentialSniffer: FTP/HTTP Basic/form POST/SNMP/LDAP/NTLMv1v2 credential extraction
- KerberosHarvester: AS-REQ/AS-REP/TGS-REP parsing for hashcat modes 7500/18200/13100
- HostDiscovery: ARP/DHCP/mDNS/NetBIOS/SSDP/LLMNR passive host inventory with OUI lookup
- OSFingerprint: p0f-style TCP SYN analysis + HTTP UA/SSH banner/SMB dialect fingerprinting
- TrafficAnalyzer: flow tracking, protocol distribution, top talkers, beacon detection
All modules extend BaseModule, use capture_bus subscription, struct-based parsing
(no scapy), batch SQLite writes, and publish bus events.
n0mad1k
1c85244e9c