9.7.0 (#709)

- Auto-download psl_overrides.txt at startup (and whenever the reverse DNS
  map is reloaded) via load_psl_overrides(); add local_psl_overrides_path
  and psl_overrides_url config options
- Add collect_domain_info.py and detect_psl_overrides.py for bulk WHOIS/HTTP
  enrichment and automatic cluster-based PSL override detection
- Block full-IPv4 reverse-DNS entries from ever entering
  base_reverse_dns_map.csv, known_unknown_base_reverse_dns.txt, or
  unknown_base_reverse_dns.csv, and sweep pre-existing IP entries
- Add Religion and Utilities to the allowed service_type values
- Document the full map-maintenance workflow in AGENTS.md
- Substantial expansion of base_reverse_dns_map.csv (net ~+1,000 entries)
- Add 26 tests covering the new loader, IP filter, PSL fold logic, and
  cluster detection

Co-authored-by: Sean Whalen <seanthegeek@users.noreply.github.com>

docs/source/usage.md

@@ -143,6 +143,8 @@ The full set of configuration options are:
       IP-to-country database and reverse DNS map
   - `local_reverse_dns_map_path` - Overrides the default local file path to use for the reverse DNS map
   - `reverse_dns_map_url` - Overrides the default download URL for the reverse DNS map
+  - `local_psl_overrides_path` - Overrides the default local file path to use for the PSL overrides list
+  - `psl_overrides_url` - Overrides the default download URL for the PSL overrides list
   - `nameservers` - str: A comma separated list of
       DNS resolvers (Default: `[Cloudflare's public resolvers]`)
   - `dns_test_address` - str: a dummy address used for DNS pre-flight checks