30007d21d6
- dns_resolver.py: add _ip_to_arpa_name() helper and lookup_ptr() to BaseDNSProvider (no-op default), SystemDNSProvider (dnspython PTR), and CloudflareDNSProvider (DoH PTR type=12) - domains.py: extend SourceEntry with hostname + spf_fix_hint; update get_domain_sources to run async PTR lookups and generate ip4:/ip6: SPF mechanism hints for failing IPs - domain_details.html: show rDNS hostname below IP in sources table; add DaisyUI tooltip explaining each auth result; add "Fix SPF" popover with copy-paste mechanism for IPs that fail SPF - tests: 15 new tests covering _ip_to_arpa_name, SystemDNSProvider/ CloudflareDNSProvider PTR lookup, and sources endpoint hostname + fix-hint fields Agent-Logs-Url: https://github.com/christianlouis/dmarq/sessions/9eaa7749-047c-46bd-8bc0-2851ea02ffe4 Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>