Bug Fix

• Fixed lon/lat values of 0.0 being omitted from reverse geocoding requests.
• Fixed memory leaks in curl_easy_escape calls.
• Fixed undefined behaviour from xmlFreeNode on document-owned nodes; replaced with xmlFreeDoc.
• Fixed IsLayerValid rejecting valid comma-separated layer lists.
• Fixed duplicate state->amenity assignment in nominatim_fdw_search.
• Fixed redundant palloc0 for state in nominatim_fdw_search and nominatim_fdw_lookup.
• Fixed early (incomplete) assignment of place->addressparts in ParseNominatimReverseData.

Security

• Enabled TLS peer verification (CURLOPT_SSL_VERIFYPEER).

Improvements

• Moved curl_global_init/curl_global_cleanup to _PG_init/_PG_fini — called once per backend instead of once per request.