Merge upstream/main and resolve weather-satellite.js conflict

Resolved conflict in static/js/modes/weather-satellite.js:
- Kept allPasses state variable and applyPassFilter() for satellite pass filtering
- Kept satellite select dropdown listener for filter feature
- Adopted upstream's optimistic stop() UI pattern for better responsiveness
- Kept optional chaining (pass?.trajectory) since drawPolarPlot can receive null

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

routes/adsb.py

@@ -685,7 +685,7 @@ def start_adsb():
                 'session': session
             }), 409
 
-    data = request.json or {}
+    data = request.get_json(silent=True) or {}
     start_source = data.get('source')
     started_by = request.remote_addr
 
@@ -899,7 +899,7 @@ def start_adsb():
 def stop_adsb():
     """Stop ADS-B tracking."""
     global adsb_using_service, adsb_active_device
-    data = request.json or {}
+    data = request.get_json(silent=True) or {}
     stop_source = data.get('source')
     stopped_by = request.remote_addr