Add server endpoints so the iPad can browse buildings and read per-building facts (neighborhood, shape, dims, street_facades[], footprint_hash).\n\nEndpoints:\n- POST /buildings/import-sidecar — ingest the bake's per-chunk sidecar JSON\n- GET /buildings?neighborhood=…&type=… — paginated building list\n- GET /buildings/{osm_id} — full facts for one building\n\nBlocks the iPad building browser. Discovered from #298.
Add server endpoints so the iPad can browse buildings and read per-building facts (neighborhood, shape, dims, street_facades[], footprint_hash).\n\nEndpoints:\n-
POST /buildings/import-sidecar— ingest the bake's per-chunk sidecar JSON\n-GET /buildings?neighborhood=…&type=…— paginated building list\n-GET /buildings/{osm_id}— full facts for one building\n\nBlocks the iPad building browser. Discovered from #298.