Custom icons, improved GPS, history layout, address fixes

- Replace placeholder SVG icons with custom PNG icons (80x80 padded)
- AffineTransform for pixel-perfect icon centering in menu ring
- Colored circles behind icons with icon drawn at 60% size
- GPS: always wait full timeout (30s), keep best quality fix
- History: show address, PLZ+city, coordinates on separate lines
- Geocoding: fall back to "name" field for street-level results,
  include PLZ+city in cached address data
- Address distance threshold raised to 70m

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

source/MenuView.mc

@@ -67,6 +67,11 @@ class MenuView extends WatchUi.View {
             var isSelected = (i == _selectedIndex);
             var targetSize = isSelected ? selSize : baseSize;
 
+            // Colored circle behind icon.
+            var color = _items[i][:color] as Number;
+            dc.setColor(color, Config.COLOR_BG);
+            dc.fillCircle(x, y, targetSize / 2);
+
             var iconId = _items[i][:icon];
             var bmp = _bitmaps[iconId] as BitmapResource;
             if (bmp != null) {
@@ -91,12 +96,12 @@ class MenuView extends WatchUi.View {
                                      cx as Number, cy as Number,
                                      targetSize as Number) as Void {
         var bmpW = bmp.getWidth();
+        var bmpH = bmp.getHeight();
         var scale = targetSize.toFloat() / bmpW.toFloat();
-        dc.drawBitmap2(
-            cx - targetSize / 2,
-            cy - targetSize / 2,
-            bmp,
-            { :scaleX => scale, :scaleY => scale }
-        );
+        var tf = new Graphics.AffineTransform();
+        tf.translate(cx.toFloat(), cy.toFloat());
+        tf.scale(scale, scale);
+        tf.translate(-bmpW.toFloat() / 2.0, -bmpH.toFloat() / 2.0);
+        dc.drawBitmap2(0, 0, bmp, { :transform => tf });
     }
 }