- world_zodiac.py: Chinese zodiac year/element + 2-hour animal, N/S summer (computed)
- world_fire.py: live wildfires from NASA EONET (the fire element)
- overlapping groups: a source can now belong to many concept groups at once
(elements fire/earth/air/water/spirit, plus wealth + summer vibes) — they stack
- transform.py: member_groups (1:many) replaces 1:1 grouping
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
