Fix satellite dashboard to fetch full orbit immediately on pass select

Added updateRealTimePositions() call to selectPass() so the full orbit
track is fetched immediately when a pass is selected, not just on the
5-second interval.

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

templates/satellite_dashboard.html

@@ -1039,6 +1039,8 @@
             drawPolarPlot(pass);
             updateGroundTrack(pass);
             updateTelemetry(pass);
+            // Immediately fetch full orbit track
+            updateRealTimePositions();
         }
 
         function drawPolarPlot(pass) {