fix: freehand drawing, click highlight, mobile toolbar visibility

Freehand drawing fix:
- Disable dragPan when in freehand mode (was only disabling dblclick
  zoom). Without this, clicks were interpreted as pan gestures.
- Re-enable dragPan when exiting freehand mode.

Click highlight:
- Clicking a parcel in "off" mode now highlights it with the selection
  layer (amber fill + orange outline). Clicking empty space clears it.
- Provides visual feedback for which parcel was clicked.

Mobile toolbar:
- Moved selection toolbar higher (bottom-12 on mobile) with z-20
  to ensure it's above MapLibre attribution bar.

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

src/app/(portal)/portal/page.tsx

@@ -1597,8 +1597,8 @@ function HartaContent() {
                 )}
               </div>
 
-              {/* Bottom: selection toolbar — centered on mobile, above attribution */}
+              {/* Bottom: selection toolbar — centered, above attribution */}
-              <div className="absolute bottom-8 left-1/2 -translate-x-1/2 sm:left-3 sm:translate-x-0 z-10">
+              <div className="absolute bottom-12 sm:bottom-8 left-1/2 -translate-x-1/2 sm:left-3 sm:translate-x-0 z-20">
                 <SelectionToolbar
                   selectedFeatures={selectedFeatures}
                   selectionMode={selectionMode}

src/modules/geoportal/components/map-viewer.tsx

@@ -495,6 +495,11 @@ export const MapViewer = forwardRef<MapViewerHandle, MapViewerProps>(
         });
 
         if (features.length === 0) {
+          // Clear highlight when clicking empty space
+          try {
+            map.setFilter(LAYER_IDS.selectionFill, ["==", "object_id", "__NONE__"]);
+            map.setFilter(LAYER_IDS.selectionLine, ["==", "object_id", "__NONE__"]);
+          } catch { /* noop */ }
           onFeatureClick?.(null as unknown as ClickedFeature); // close panel
           return;
         }
@@ -519,8 +524,16 @@ export const MapViewer = forwardRef<MapViewerHandle, MapViewerProps>(
           return;
         }
 
-        // Feature click — notify parent (no popup) — only when off or click mode on non-terenuri
+        // Feature click — notify parent (no popup) — only when off
         if (mode === "off") {
+          // Highlight clicked parcel with selection layer
+          const objectId = String(props.object_id ?? "");
+          if (objectId && sourceLayer === SOURCES.terenuri) {
+            try {
+              map.setFilter(LAYER_IDS.selectionFill, ["==", "object_id", objectId]);
+              map.setFilter(LAYER_IDS.selectionLine, ["==", "object_id", objectId]);
+            } catch { /* noop */ }
+          }
           onFeatureClick?.({
             layerId: first.layer?.id ?? "",
             sourceLayer,
@@ -734,14 +747,18 @@ export const MapViewer = forwardRef<MapViewerHandle, MapViewerProps>(
       mapRef.current.flyTo({ center, zoom: zoom ?? mapRef.current.getZoom(), duration: 1500 });
     }, [center, zoom, mapReady]);
 
-    /* ---- Disable double-click zoom when in freehand mode ---- */
+    /* ---- Disable interactions when in drawing modes ---- */
     useEffect(() => {
       const map = mapRef.current;
       if (!map) return;
       if (selectionType === "freehand") {
         map.doubleClickZoom.disable();
+        map.dragPan.disable();
+      } else if (selectionType === "rect") {
+        // rect handles dragPan itself in mousedown/mouseup
       } else {
         map.doubleClickZoom.enable();
+        map.dragPan.enable();
       }
     }, [selectionType, mapReady]);