Karte: Zoom- und Scroll-Grenzen wie beim Monitor hinzugefügt

- minZoom: 2 verhindert zu weites Auszoomen
- maxBounds begrenzt Pan-Bereich auf Weltgrenzen
- maxBoundsViscosity: 1.0 macht Grenzen fest
- noWrap: true verhindert Kachel-Wiederholung

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

lagebild/lagebild.js

@@ -658,12 +658,17 @@ var Lagebild = {
     /* ===== TAB: KARTE (Pulse Markers) ===== */
     renderMap: function() {
         if (this.map) { this.map.remove(); this.map = null; }
-        this.map = L.map('map-container').setView([33.0, 48.0], 5);
+        this.map = L.map('map-container', {
+            minZoom: 2,
+            maxBounds: [[-85, -180], [85, 180]],
+            maxBoundsViscosity: 1.0
+        }).setView([33.0, 48.0], 5);
 
         // Light map tiles (CartoDB Voyager)
         L.tileLayer('https://{s}.basemaps.cartocdn.com/rastertiles/voyager/{z}/{x}/{y}{r}.png', {
             attribution: '&copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> &copy; <a href="https://carto.com/">CARTO</a>',
             maxZoom: 19,
+            noWrap: true,
             subdomains: 'abcd'
         }).addTo(this.map);