# Intrusion Detection System — shared utilities
#
# Modules:
#   constants.py          central configuration, paths, env vars
#   files.py              filesystem & I/O helpers
#   ip_utils.py           IP address parsing, validation, whitelist lookup
#   models.py             data models (Request, IPStats) + aggregate()
#   reporting.py          text rendering, table formatting
#   utils.py              shared CLI arg parser
#   whitelists.py         whitelist CIDR download, caching, validation
#   whois.py              WHOIS subnet queries, IP consolidation
#   blocklist_history.py  git-backed cumulative blocklist reconstruction
#   retention.py          report file retention & pruning