- Seed script now seeds: amenities, population, median_age, census
housing columns, housing mart (rent/affordability), overview mart
(safety_score, population)
- Add statsmodels dependency for scatter plot trendlines
- Add dbt/.user.yml to gitignore
All 15 notebooks now pass with valid data.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>