feat/geo-guessed-places start (ours-api): lane geo_guessed_places G6.1 - guessed places on OWI pages and social posts via resilipipe-geo-guess, off by default. Scope: dependency+adapter, geo_guessed_* fields, OWI/social hooks, include_guessed. Verification: targeted + wider tests, then a dev feed. Plan: ourrs-main docs/lanes/lane_geo_guessed_places.md