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>

debian/DEBIAN/control

@@ -0,0 +1,22 @@
+Package: skyview
+Version: 2.0.0
+Section: net
+Priority: optional
+Architecture: amd64
+Depends: systemd
+Maintainer: SkyView Team <admin@skyview.local>
+Description: Multi-source ADS-B aircraft tracker with Beast format support
+ SkyView is a standalone application that connects to multiple dump1090 Beast
+ format TCP streams and provides a modern web frontend for aircraft tracking.
+ Features include real-time aircraft tracking, signal strength analysis,
+ coverage mapping, and 3D radar visualization.
+ .
+ Key features:
+  - Multi-source Beast binary format parsing
+  - Real-time WebSocket updates
+  - Interactive maps with Leaflet.js
+  - Signal strength heatmaps and range circles
+  - Historical flight tracking
+  - Mobile-responsive design
+  - Systemd integration for service management
+Homepage: https://github.com/skyview/skyview

debian/DEBIAN/postinst

@@ -0,0 +1,40 @@
+#!/bin/bash
+set -e
+
+case "$1" in
+    configure)
+        # Create skyview user and group if they don't exist
+        if ! getent group skyview >/dev/null 2>&1; then
+            addgroup --system skyview
+        fi
+        
+        if ! getent passwd skyview >/dev/null 2>&1; then
+            adduser --system --ingroup skyview --home /var/lib/skyview \
+                    --no-create-home --disabled-password skyview
+        fi
+        
+        # Create directories with proper permissions
+        mkdir -p /var/lib/skyview
+        mkdir -p /var/log/skyview
+        chown skyview:skyview /var/lib/skyview
+        chown skyview:skyview /var/log/skyview
+        chmod 755 /var/lib/skyview
+        chmod 755 /var/log/skyview
+        
+        # Set permissions on config file
+        if [ -f /etc/skyview/config.json ]; then
+            chown root:skyview /etc/skyview/config.json
+            chmod 640 /etc/skyview/config.json
+        fi
+        
+        # Enable and start the service
+        systemctl daemon-reload
+        systemctl enable skyview.service
+        
+        echo "SkyView has been installed and configured."
+        echo "Edit /etc/skyview/config.json to configure your dump1090 sources."
+        echo "Then run: systemctl start skyview"
+        ;;
+esac
+
+exit 0

debian/DEBIAN/postrm

@@ -0,0 +1,31 @@
+#!/bin/bash
+set -e
+
+case "$1" in
+    purge)
+        # Remove user and group
+        if getent passwd skyview >/dev/null 2>&1; then
+            deluser --system skyview >/dev/null 2>&1 || true
+        fi
+        
+        if getent group skyview >/dev/null 2>&1; then
+            delgroup --system skyview >/dev/null 2>&1 || true
+        fi
+        
+        # Remove data directories
+        rm -rf /var/lib/skyview
+        rm -rf /var/log/skyview
+        
+        # Remove config directory if empty
+        rmdir /etc/skyview 2>/dev/null || true
+        
+        echo "SkyView has been completely removed."
+        ;;
+    
+    remove)
+        # Reload systemd after service file removal
+        systemctl daemon-reload
+        ;;
+esac
+
+exit 0

debian/DEBIAN/prerm

@@ -0,0 +1,17 @@
+#!/bin/bash
+set -e
+
+case "$1" in
+    remove|upgrade|deconfigure)
+        # Stop and disable the service
+        if systemctl is-active --quiet skyview.service; then
+            systemctl stop skyview.service
+        fi
+        
+        if systemctl is-enabled --quiet skyview.service; then
+            systemctl disable skyview.service
+        fi
+        ;;
+esac
+
+exit 0