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/Event.mc

@@ -10,6 +10,7 @@ class Event {
     public var lon as Float or Null;
     public var accuracy as Float or Null;
     public var address as String or Null;
+    public var zip as String or Null;
 
     function initialize(type as String, timestamp as Number,
                         lat as Float or Null, lon as Float or Null,
@@ -20,6 +21,7 @@ class Event {
         self.lon = lon;
         self.accuracy = accuracy;
         self.address = null;
+        self.zip = null;
     }
 
     function toDict() as Dictionary {
@@ -30,9 +32,8 @@ class Event {
             "lon" => lon,
             "acc" => accuracy
         };
-        if (address != null) {
-            d["addr"] = address;
-        }
+        if (address != null) { d["addr"] = address; }
+        if (zip != null) { d["zip"] = zip; }
         return d;
     }
 
@@ -44,9 +45,8 @@ class Event {
             d["lon"] as Float or Null,
             d["acc"] as Float or Null
         );
-        if (d.hasKey("addr")) {
-            evt.address = d["addr"] as String or Null;
-        }
+        if (d.hasKey("addr")) { evt.address = d["addr"] as String or Null; }
+        if (d.hasKey("zip")) { evt.zip = d["zip"] as String or Null; }
         return evt;
     }
 }