v0.3.0 — analytics-first ergonomics

Ergonomics release, driven by dogfooding the analytics/enrichment use case — surfacing IP origin next to every IP an admin already looks at — in a production Rails app.

New API

r = OpenASN.try_lookup(user.signup_ip)  # nil-safe: nil/blank/garbage in, nil out

r.label        # => "Residential ISP" / "VPN" / "Hosting / datacenter" — for admin UIs
r.flag_names   # => [:bad_asn, :vpn_provider] — ASN signals, decoded to names
r.bad_asn?     # => true — no more FORMAT.md bit arithmetic
r.flag?(:cdn)  # named check for any ASN flag

Result#to_h now includes flag_names (append-only key — shadow logs stay parseable).

Changed

README reframed analytics-first: enriching admin panels and audit trails is the primary documented use case; acting on the signal (step-up verification, rate limits) is the optional later step.

Full details in CHANGELOG.md.

Full Changelog: v0.2.0...v0.3.0