GEOINT: Globaler Schiffsverkehr via AISStream.io

Digitraffic (nur Nordeuropa) ersetzt durch AISStream.io WebSocket:
- Globale Echtzeit-AIS-Daten (tausende Schiffe weltweit)
- Dauerhafter WebSocket-Client im Backend, auto-reconnect
- Schiffsnamen im Popup (MMSI, SOG, COG)
- Binary-Frame Parsing fuer WebSocket-Nachrichten
- Auto-Start bei Server-Hochfahren
- Stale-Cleanup (>15 Min alte Positionen entfernt)

src/static/js/geoint.js

@@ -87,7 +87,7 @@ const GEOINT = {
         var self = this;
         var items = [
             ['flights', 'Flugverkehr', 'flights'],
-            ['ships', 'Schiffe (Nordeuropa)', 'ships'],
+            ['ships', 'Schiffsverkehr', 'ships'],
             ['quakes', 'Erdbeben', 'quakes'],
             ['gdelt', 'Nachrichten', 'gdelt'],
             ['_sep'],
@@ -250,9 +250,11 @@ const GEOINT = {
             count++;
             var color = (s.sog || 0) > 0.5 ? '#4499ff' : '#556688';
             var navLabels = {0:'Motor',1:'Anker',2:'N.steuerb.',3:'Eingeschr.',5:'Festgemacht',7:'Fischfang',8:'Segel'};
-            var popup = '<div class="geoint-popup"><strong>MMSI ' + (s.mmsi||'?') + '</strong>' +
+            var shipName = s.name || ('MMSI ' + (s.mmsi||'?'));
+            var popup = '<div class="geoint-popup"><strong>' + shipName + '</strong>' +
+                (s.name ? '<br><span class="geoint-popup-key">MMSI</span> ' + (s.mmsi||'?') : '') +
                 '<br><span class="geoint-popup-key">SOG</span> ' + (s.sog||0).toFixed(1) + ' kn' +
-                '<br><span class="geoint-popup-key">NAV</span> ' + (navLabels[s.navStat] || s.navStat) + '</div>';
+                '<br><span class="geoint-popup-key">COG</span> ' + Math.round(s.cog||0) + '\u00b0' + '</div>';
             L.circleMarker([s.lat, s.lon], {
                 radius: r, fillColor: color, color: '#223355',
                 fillOpacity: 0.85, weight: 0.5, renderer: this._canvasRenderer