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/beast-dump.1

@@ -0,0 +1,95 @@
+.TH BEAST-DUMP 1 "2024-08-24" "SkyView 2.0.0" "User Commands"
+.SH NAME
+beast-dump \- Utility for analyzing raw ADS-B data in Beast binary format
+.SH SYNOPSIS
+.B beast-dump
+[\fIOPTIONS\fR] [\fIFILE\fR]
+.SH DESCRIPTION
+beast-dump is a command-line utility for analyzing and decoding ADS-B
+(Automatic Dependent Surveillance-Broadcast) data stored in Beast binary
+format. It can read from files or connect to Beast format TCP streams
+to decode and display aircraft messages.
+.PP
+The Beast format is a compact binary representation of Mode S/ADS-B
+messages commonly used by dump1090 and similar software-defined radio
+applications for aircraft tracking.
+.SH OPTIONS
+.TP
+.B \-host \fIstring\fR
+Connect to TCP host instead of reading from file
+.TP
+.B \-port \fIint\fR
+TCP port to connect to (default 30005)
+.TP
+.B \-format \fIstring\fR
+Output format: text, json, or csv (default "text")
+.TP
+.B \-filter \fIstring\fR
+Filter by ICAO hex code (e.g., "A1B2C3")
+.TP
+.B \-types \fIstring\fR
+Message types to display (comma-separated)
+.TP
+.B \-count \fIint\fR
+Maximum number of messages to process
+.TP
+.B \-stats
+Show statistics summary
+.TP
+.B \-verbose
+Enable verbose output
+.TP
+.B \-h, \-help
+Show help message and exit
+.SH EXAMPLES
+.TP
+Analyze Beast format file:
+.B beast-dump data.bin
+.TP
+Connect to live Beast stream:
+.B beast-dump \-host localhost \-port 30005
+.TP
+Export to JSON format with statistics:
+.B beast-dump \-format json \-stats data.bin
+.TP
+Filter messages for specific aircraft:
+.B beast-dump \-filter A1B2C3 \-verbose data.bin
+.TP
+Process only first 1000 messages as CSV:
+.B beast-dump \-format csv \-count 1000 data.bin
+.SH OUTPUT FORMAT
+The default text output shows decoded message fields:
+.PP
+.nf
+ICAO: A1B2C3  Type: 17  Time: 12:34:56.789
+  Position: 51.4700, -0.4600
+  Altitude: 35000 ft
+  Speed: 450 kt
+  Track: 090°
+.fi
+.PP
+JSON output provides structured data suitable for further processing.
+CSV output includes headers and is suitable for spreadsheet import.
+.SH MESSAGE TYPES
+Common ADS-B message types:
+.IP \(bu 2
+Type 4/20: Altitude and identification
+.IP \(bu 2
+Type 5/21: Surface position
+.IP \(bu 2
+Type 9/18/22: Airborne position (baro altitude)
+.IP \(bu 2
+Type 10/18/22: Airborne position (GNSS altitude)
+.IP \(bu 2
+Type 17: Extended squitter ADS-B
+.IP \(bu 2
+Type 19: Military extended squitter
+.SH FILES
+Beast format files typically use .bin or .beast extensions.
+.SH SEE ALSO
+.BR skyview (1),
+.BR dump1090 (1)
+.SH BUGS
+Report bugs at: https://github.com/skyview/skyview/issues
+.SH AUTHOR
+SkyView Team <admin@skyview.local>