v0.6.0

• Add LeafletPolygonFieldWidget, an interactive widget for GeoDjango PolygonField built on pure Leaflet (no extra JS dependency). Draw a polygon by clicking vertices, drag vertices to edit, an "Edit Coordinates" overlay accepting WKT or GeoJSON, "Current Location", and delete. Fires leafletPolygonFieldWidget:polygonCreate/polygonChange/polygonDelete jQuery triggers.
• Add a location search bar to the Leaflet widgets (LeafletPointFieldWidget and LeafletPolygonFieldWidget), powered by leaflet-geosearch. Configurable via the new geoSearch setting (enabled, provider, providerOptions); defaults to OpenStreetMap/Nominatim (no API key required).
• Add reverse geocoding to LeafletPointFieldWidget: marker location is reverse geocoded via leaflet-control-geocoder and shown in the search bar. Toggle with geoSearch.reverseGeocode (default True).