Implement server-side trail tracking and fix aircraft marker orientation

- Replace client-side trail collection with server-provided position history
- Fix aircraft markers to properly orient based on track heading using SVG rotation
- Add beast-dump binary to debian package with comprehensive man pages
- Trail visualization now uses gradient effect where newer positions are brighter
- Marker icons update when track heading changes by more than 5 degrees for performance

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

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

debian/usr/share/man/man1/skyview.1

@@ -0,0 +1,88 @@
+.TH SKYVIEW 1 "2024-08-24" "SkyView 2.0.0" "User Commands"
+.SH NAME
+skyview \- Multi-source ADS-B aircraft tracker with Beast format support
+.SH SYNOPSIS
+.B skyview
+[\fIOPTIONS\fR]
+.SH DESCRIPTION
+SkyView is a standalone application that connects to multiple dump1090 Beast
+format TCP streams and provides a modern web frontend for aircraft tracking.
+It features real-time aircraft tracking, signal strength analysis, coverage
+mapping, and 3D radar visualization.
+.PP
+The application serves a web interface on port 8080 by default and connects
+to one or more Beast format data sources (typically dump1090 instances) to
+aggregate aircraft data from multiple receivers.
+.SH OPTIONS
+.TP
+.B \-config \fIstring\fR
+Path to configuration file (default "config.json")
+.TP
+.B \-port \fIint\fR
+HTTP server port (default 8080)
+.TP
+.B \-debug
+Enable debug logging
+.TP
+.B \-version
+Show version information and exit
+.TP
+.B \-h, \-help
+Show help message and exit
+.SH FILES
+.TP
+.I /etc/skyview/config.json
+System-wide configuration file
+.TP
+.I ~/.config/skyview/config.json
+Per-user configuration file
+.SH EXAMPLES
+.TP
+Start with default configuration:
+.B skyview
+.TP
+Start with custom config file:
+.B skyview \-config /path/to/config.json
+.TP
+Start on port 9090 with debug logging:
+.B skyview \-port 9090 \-debug
+.SH CONFIGURATION
+The configuration file uses JSON format with the following structure:
+.PP
+.nf
+{
+  "sources": [
+    {
+      "id": "source1",
+      "name": "Local Receiver",
+      "host": "localhost",
+      "port": 30005,
+      "latitude": 51.4700,
+      "longitude": -0.4600
+    }
+  ],
+  "web": {
+    "port": 8080,
+    "assets_path": "/usr/share/skyview/assets"
+  }
+}
+.fi
+.SH WEB INTERFACE
+The web interface provides:
+.IP \(bu 2
+Interactive map view with aircraft markers
+.IP \(bu 2
+Aircraft data table with filtering and sorting
+.IP \(bu 2
+Real-time statistics and charts
+.IP \(bu 2
+Coverage heatmaps and range circles
+.IP \(bu 2
+3D radar visualization
+.SH SEE ALSO
+.BR beast-dump (1),
+.BR dump1090 (1)
+.SH BUGS
+Report bugs at: https://github.com/skyview/skyview/issues
+.SH AUTHOR
+SkyView Team <admin@skyview.local>