0.17.0

Added

• twelve providers from ip-fetcher v0.0.43, all enabled by default and needing no API key:
  AirVPN, IVPN and Surfshark VPN exits; the Binary Defense ban list, IPsum's level 3 list,
  StopForumSpam, X4BNet and abuse.ch's ThreatFox threat feeds; CircleCI's job runners,
  Telegram's infrastructure and the QUIC.cloud CDN; and Spamhaus ASN-DROP, which names whole
  networks, so it matches on the AS announcing the host rather than on a prefix
• OpenAI's AdsBot range list, which ip-fetcher v0.0.43 added to the three it already fetched

Changed

• the per-provider reference moves from README to docs/providers.md, leaving
  a README of 434 lines rather than 1113. The summary table stays, with its links pointing at
  the new file
• examples/ascii.txt regenerated: it showed v0.0.17 output from 2024

Fixed

• the TUI hid what a provider said about its own failure. Criminal IP naming an exceeded
  quota, for example, reached the CLI but showed in the TUI as a generic "lookup failed",
  with the reason only in app.log. The provider's own message now appears in the footer,
  and the generic line is not added on top of it