feat: add vehicle customization, Arabic search normalization, and smooth movement interpolation

packages/flutter-sdk/lib/src/intaleq_map_controller.dart

@@ -90,6 +90,7 @@ class IntaleqMapController {
     // stale handle so the next [setUserMarker] call re-creates it.
     _userSymbol = null;
     await _registerDefaultImages();
+    await applyMarkerVisibilityDefaults();
 
     // Safely execute camera updates queued before style finished rendering
     if (_pendingCameraUpdate != null) {
@@ -205,6 +206,10 @@ class IntaleqMapController {
   Future<mgl.Symbol?> addMarker(Marker marker) async {
     if (!_isStyleLoaded) return null;
     try {
+      if (_symbols.containsKey(marker.markerId)) {
+        await _updateMarker(marker);
+        return _symbols[marker.markerId];
+      }
       await _loadBitmapIfNeeded(marker.icon);
       final symbol = await _raw.addSymbol(marker.toSymbolOptions());
       _symbols[marker.markerId] = symbol;
@@ -223,7 +228,10 @@ class IntaleqMapController {
   Future<void> _updateMarker(Marker marker) async {
     if (!_isStyleLoaded) return;
     final symbol = _symbols[marker.markerId];
-    if (symbol == null) return;
+    if (symbol == null) {
+      await addMarker(marker);
+      return;
+    }
     try {
       await _loadBitmapIfNeeded(marker.icon);
       await _raw.updateSymbol(symbol, marker.toSymbolOptions());
@@ -243,6 +251,12 @@ class IntaleqMapController {
     } catch (_) {}
   }
 
+  /// Removes a marker from the map by its [MarkerId].
+  Future<void> removeMarker(MarkerId id) => _removeMarker(id);
+
+  /// Removes a polyline from the map by its [PolylineId].
+  Future<void> removePolyline(PolylineId id) => _removePolyline(id);
+
   // ── User-location puck (imperative, high-frequency) ────────
 
   /// Places or moves the single "user location" puck.

packages/flutter-sdk/lib/src/models/bitmap.dart

@@ -89,6 +89,17 @@ class InlqBitmap {
     );
   }
 
+  @override
+  bool operator ==(Object other) =>
+      identical(this, other) ||
+      other is InlqBitmap &&
+          runtimeType == other.runtimeType &&
+          mapLibreImageId == other.mapLibreImageId &&
+          size == other.size;
+
+  @override
+  int get hashCode => Object.hash(mapLibreImageId, size);
+
   @override
   String toString() => 'InlqBitmap($mapLibreImageId)';
 }