feat(geoportal): add search, basemap switcher, feature info panel, selection + export

Major geoportal enhancements:
- Basemap switcher (OSM/Satellite/Terrain) with ESRI + OpenTopoMap tiles
- Search bar with debounced lookup (UATs by name, parcels by cadastral ref, owners by name)
- Feature info panel showing enrichment data from ParcelSync (cadastru, proprietari, suprafata, folosinta)
- Parcel selection mode with amber highlight + export (GeoJSON/DXF/GPKG via ogr2ogr)
- Next.js /tiles rewrite proxying to Martin (fixes dev + avoids mixed content)
- Fixed MapLibre web worker relative URL resolution (window.location.origin)

API routes: /api/geoportal/search, /api/geoportal/feature, /api/geoportal/export

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

src/modules/geoportal/components/geoportal-module.tsx

@@ -4,8 +4,18 @@ import { useState, useRef, useCallback } from "react";
 import dynamic from "next/dynamic";
 import { Globe } from "lucide-react";
 import { LayerPanel, getDefaultVisibility } from "./layer-panel";
+import { BasemapSwitcher } from "./basemap-switcher";
+import { SearchBar } from "./search-bar";
+import { SelectionToolbar } from "./selection-toolbar";
+import { FeatureInfoPanel } from "./feature-info-panel";
 import type { MapViewerHandle } from "./map-viewer";
-import type { ClickedFeature, LayerVisibility } from "../types";
+import type {
+  BasemapId,
+  ClickedFeature,
+  LayerVisibility,
+  SearchResult,
+  SelectedFeature,
+} from "../types";
 
 /* MapLibre uses WebGL — must disable SSR */
 const MapViewer = dynamic(
@@ -29,20 +39,60 @@ const MapViewer = dynamic(
 
 export function GeoportalModule() {
   const mapHandleRef = useRef<MapViewerHandle>(null);
+
+  // Map state
+  const [basemap, setBasemap] = useState<BasemapId>("osm");
   const [layerVisibility, setLayerVisibility] = useState<LayerVisibility>(
     getDefaultVisibility
   );
 
+  // Feature info
+  const [clickedFeature, setClickedFeature] = useState<ClickedFeature | null>(null);
+
+  // Selection
+  const [selectionMode, setSelectionMode] = useState(false);
+  const [selectedFeatures, setSelectedFeatures] = useState<SelectedFeature[]>([]);
+
+  // Fly-to target (from search)
+  const [flyTarget, setFlyTarget] = useState<{ center: [number, number]; zoom?: number } | undefined>();
+
   const handleFeatureClick = useCallback((feature: ClickedFeature) => {
-    // Feature click is handled by the MapViewer popup internally.
-    // This callback is available for future integration (e.g., detail panel).
-    void feature;
+    setClickedFeature(feature);
   }, []);
 
   const handleVisibilityChange = useCallback((vis: LayerVisibility) => {
     setLayerVisibility(vis);
   }, []);
 
+  const handleSearchResult = useCallback((result: SearchResult) => {
+    if (result.coordinates) {
+      setFlyTarget({
+        center: result.coordinates,
+        zoom: result.type === "uat" ? 12 : 17,
+      });
+    }
+  }, []);
+
+  const handleSelectionChange = useCallback((features: SelectedFeature[]) => {
+    setSelectedFeatures(features);
+  }, []);
+
+  const handleToggleSelectionMode = useCallback(() => {
+    setSelectionMode((prev) => {
+      if (prev) {
+        // Turning off: clear selection
+        mapHandleRef.current?.clearSelection();
+        setSelectedFeatures([]);
+      }
+      return !prev;
+    });
+  }, []);
+
+  const handleClearSelection = useCallback(() => {
+    mapHandleRef.current?.clearSelection();
+    setSelectedFeatures([]);
+  }, []);
+
   return (
     <div className="space-y-4">
       {/* Header */}
@@ -61,17 +111,48 @@ export function GeoportalModule() {
         <MapViewer
           ref={mapHandleRef}
           className="h-full w-full"
+          basemap={basemap}
+          selectionMode={selectionMode}
           onFeatureClick={handleFeatureClick}
+          onSelectionChange={handleSelectionChange}
           layerVisibility={layerVisibility}
+          center={flyTarget?.center}
+          zoom={flyTarget?.zoom}
         />
 
-        {/* Layer panel overlay */}
-        <div className="absolute top-3 left-3 z-10">
+        {/* Top-left controls: search + layers */}
+        <div className="absolute top-3 left-3 z-10 flex flex-col gap-2 max-w-xs">
+          <SearchBar onResultSelect={handleSearchResult} />
           <LayerPanel
             visibility={layerVisibility}
             onVisibilityChange={handleVisibilityChange}
           />
         </div>
+
+        {/* Top-right: basemap switcher */}
+        <div className="absolute top-3 right-14 z-10">
+          <BasemapSwitcher value={basemap} onChange={setBasemap} />
+        </div>
+
+        {/* Bottom-left: selection toolbar */}
+        <div className="absolute bottom-8 left-3 z-10">
+          <SelectionToolbar
+            selectedFeatures={selectedFeatures}
+            selectionMode={selectionMode}
+            onToggleSelectionMode={handleToggleSelectionMode}
+            onClearSelection={handleClearSelection}
+          />
+        </div>
+
+        {/* Right side: feature info panel */}
+        {clickedFeature && !selectionMode && (
+          <div className="absolute top-3 right-3 z-10 mt-12">
+            <FeatureInfoPanel
+              feature={clickedFeature}
+              onClose={() => setClickedFeature(null)}
+            />
+          </div>
+        )}
       </div>
     </div>
   );