fix(geoportal): simplified info panel, preserve basemap zoom, DXF export, intravilan outline

- Feature panel: simplified (NR_CAD/NR_CF/SIRUTA/Suprafata/Proprietari),
  aligned top-right under basemap switcher, click empty space to close
- Basemap switch: preserves zoom+center via viewStateRef + moveend listener
- DXF export: use -s_srs + -t_srs (not -a_srs + -t_srs which ogr2ogr rejects)
- Intravilan: double line (black outer + orange inner), z13+, no fill
- Parcel labels: cadastral_ref shown at z16+
- UAT z12: original geometry (no simplification)
- Removed MapLibre popup (only side panel)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

prisma/gisuat-postgis-setup.sql

@@ -182,10 +182,9 @@ SELECT siruta, name, county,
   ST_SimplifyPreserveTopology(geom, 50) AS geom
 FROM "GisUat" WHERE geom IS NOT NULL;
 
--- z12+: Fine (10m tolerance) — near-original precision
+-- z12+: Original geometry — full precision, no simplification
 CREATE OR REPLACE VIEW gis_uats_z12 AS
-SELECT siruta, name, county,
-  ST_SimplifyPreserveTopology(geom, 10) AS geom
+SELECT siruta, name, county, geom
 FROM "GisUat" WHERE geom IS NOT NULL;
 
 -- Keep the legacy gis_uats view for QGIS compatibility