Complete multi-source Beast format implementation

Major features implemented:
- Beast binary format parser with full Mode S/ADS-B decoding
- Multi-source data merger with intelligent signal-based fusion
- Advanced web frontend with 5 view modes (Map, Table, Stats, Coverage, 3D)
- Real-time WebSocket updates with sub-second latency
- Signal strength analysis and coverage heatmaps
- Debian packaging with systemd integration
- Production-ready deployment with security hardening

Technical highlights:
- Concurrent TCP clients with auto-reconnection
- CPR position decoding and aircraft identification
- Historical flight tracking with position trails
- Range circles and receiver location visualization
- Mobile-responsive design with professional UI
- REST API and WebSocket real-time updates
- Comprehensive build system and documentation

🤖 Generated with [Claude Code](https://claude.ai/code)

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

old.json

@@ -0,0 +1,15 @@
+{
+  "server": {
+    "address": ":8080",
+    "port": 8080
+  },
+  "dump1090": {
+    "host": "svovel",
+    "data_port": 30003
+  },
+  "origin": {
+    "latitude": 59.908127,
+    "longitude": 10.801460,
+    "name": "Etterstadsletta flyplass"
+  }
+}