feat(client): initial implementation of jellyfin htpc client with yatse remote and youtube playback

systemd/jellyfin-client.service

@@ -0,0 +1,21 @@
+[Unit]
+Description=Jellyfin HTPC Client & YouTube Receiver
+After=network-online.target sound.target graphical-session.target
+Wants=network-online.target
+
+[Service]
+Type=simple
+Environment=DISPLAY=:0
+Environment=WAYLAND_DISPLAY=wayland-0
+# Pass path to config if not in default location
+# Environment=JELLYFIN_CLIENT_CONFIG=/etc/jellyfin-client/config.yaml
+ExecStart=/opt/jellyfin-client/.venv/bin/python3 -m src.main
+WorkingDirectory=/opt/jellyfin-client
+Restart=always
+RestartSec=5s
+
+# Process security and limits
+LimitNOFILE=65536
+
+[Install]
+WantedBy=default.target