RentCast geocoding is approximate and placed 878 Chalmers in the lake. Override RentCast lat/lng with building centroid coords from owners.rds when address matches, giving accurate per-structure placement.
- update_listings.R: pulls 1-mile radius, clips to plat boundary - Listings tab: table with listed date, address, sqft, price, $/sqft - Weekly cron: Sunday 11:30pm (30 min after owners refresh) - httr2 added to renv.lock
