write_rss now emits upstream's full RSS 2.0 structure:
- xmlns:atom on <rss>; channel <link> points at the diary index page
(base_url + diary_rel + diary_index + .html), not bare base_url.
- <atom:link rel="self"> to base_url + rss_name.
- channel + per-item <pubDate> (RFC-822, derived from the diary date;
1970-01-01=Thu weekday math via to_days_epoch).
- per-item <guid isPermaLink="false"> holding the bare date.
- per-item <![CDATA[ rendered page body ]]> (render_entry_body reads+parses
the entry and renders body-only with the wiki's colour/valid-tag/emoji opts;
cdata_safe splits any literal ]]>).
- rss_name drives the output filename; rss_max_items caps the feed (0 =
unlimited).
Tests: updated write_rss_uses_base_url_for_public_links for the new channel
link/guid/atom/pubDate; new write_rss_honours_rss_name_and_max_items. Full
rust suite + clippy clean.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
gffranco
4a19f180f2