Add support for FlightAware dump1090-fa binary

Users building dump1090-fa from source (e.g., on Debian Trixie where
dump1090-mutability is unavailable) can now use it with ADS-B tracking.

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

routes/adsb.py

@@ -154,7 +154,7 @@ def parse_sbs_stream(service_addr):
 def check_adsb_tools():
     """Check for ADS-B decoding tools."""
     return jsonify({
-        'dump1090': shutil.which('dump1090') is not None or shutil.which('dump1090-mutability') is not None,
+        'dump1090': shutil.which('dump1090') is not None or shutil.which('dump1090-mutability') is not None or shutil.which('dump1090-fa') is not None,
         'rtl_adsb': shutil.which('rtl_adsb') is not None
     })
 
@@ -174,7 +174,7 @@ def start_adsb():
     gain = data.get('gain', '40')
     device = data.get('device', '0')
 
-    dump1090_path = shutil.which('dump1090') or shutil.which('dump1090-mutability')
+    dump1090_path = shutil.which('dump1090') or shutil.which('dump1090-mutability') or shutil.which('dump1090-fa')
 
     if not dump1090_path:
         return jsonify({'status': 'error', 'message': 'dump1090 not found.'})

utils/dependencies.py

@@ -158,7 +158,7 @@ TOOL_DEPENDENCIES = {
                 'required': False,
                 'description': 'Mode S / ADS-B decoder (preferred)',
                 'install': {
-                    'apt': 'sudo apt install dump1090-mutability',
+                    'apt': 'sudo apt install dump1090-mutability (or build dump1090-fa from source)',
                     'brew': 'brew install dump1090-mutability',
                     'manual': 'https://github.com/flightaware/dump1090'
                 },