Fixes a 0.9.13 regression: import hotin.board failed on any Python without the IANA timezone database (CI images, slim containers, Windows), because the Pacific lookup moved to module scope. hotin declares zero dependencies, so Pacific is now resolved lazily with a fallback that computes the US daylight-saving rule directly.
Also in 0.9.13-0.9.15: the fresh badge now means 'created inside its policy window' rather than 'a source re-saw it recently'; every board row carries date_iso, age_days and section_id; the export carries schema_version, policy_version, policy and generated_at; insider rows are judged by the star event rather than the repo's creation date; new hotin fresh subcommand.