Remove wrapper div around month headings so the h2 is a direct child
of the timeline container. position: sticky was broken because the
heading's containing block (the wrapper) was only as tall as the
heading itself, giving it no room to stick.
Also update MutationObserver to detect headings added as direct
children via node.matches() in addition to node.querySelector().
Per-month <ol> containers caused :nth-of-type to reset at each month,
putting the first card of consecutive months on the same side. Flatten
all items into a single container and use :nth-child(odd of .timeline-item)
for continuous left/right alternation across months and infinite scroll.
Database:
- Add slug, roaster_slug, brew_data_json columns to timeline_events
- Migration backfills existing data from related tables
- Remove 9-way LEFT JOIN from list query, read directly from columns
Frontend:
- Use CSS :nth-of-type(odd/even) for alternating timeline layout
- Remove JavaScript class manipulation when appending month events
- Simplify infinite scroll month-merging logic
This eliminates query-time JOINs across 5 tables and ~20 lines of
client-side JavaScript for pattern maintenance.
- Simplify timeline layout to single-column without sidebar
- Update tests to explicitly pass page_size for pagination testing
- Include sticky headers and a neater alternating, side-by-side
timeline design
