Blog post sorting uses inverse title compare as fallback

[caugner]

Context

When two blog posts share the same publication date, the sort uses reverse alphabetical title comparison as a tiebreaker. The code has an inline // TODO: use proper order comment.

Current behavior

In crates/rari-doc/src/cached_readers.rs (lines ~433-440):

sorted_meta.sort_by(|a, b| {
    if a.date != b.date {
        a.date.cmp(&b.date)
    } else {
        // TODO: use proper order
        b.title.cmp(&a.title)
    }
});

Question

What should the "proper order" be? Options include:

• An explicit order or weight field in blog post frontmatter
• Filesystem/creation order
• Keep the current behavior but document it as intentional

This has been unchanged since 2024-06-20.