Initial commit: self-hosted personal radio station

Flask + React web UI with audio player, podcast queue, feed management,
episode browser, music library, schedule viewer, and log tail.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

systemd/localradio-icecast.service

@@ -0,0 +1,17 @@
+[Unit]
+Description=Local Radio - Icecast Streaming Server
+After=network.target
+Wants=network.target
+
+[Service]
+Type=simple
+ExecStart=/usr/bin/icecast2 -c /opt/localradio/config/icecast.xml
+Restart=always
+RestartSec=5
+User=localradio
+Group=localradio
+StandardOutput=journal
+StandardError=journal
+
+[Install]
+WantedBy=multi-user.target