SUB/WAVE deploy

Set up, deploy, or update SUB/WAVE (a personal internet radio station). On a fresh checkout, runs scripts/setup.sh, prompts for Navidrome + Ollama credentials, brings the stack up, and generates jingles. On an already-running stack, pulls the latest, rebuilds only the Docker services whose code actually changed, recreates them, and verifies the stream is on-air. Use this skill any time the user wants to install, set up, bootstrap, deploy, update, sync, redeploy, refresh, restart, or "pull and restart" SUB/WAVE — including phrases like "set up subwave", "install subwave", "first boot", "bootstrap the radio", "pull subwave", "update the radio", "deploy subwave", "rebuild co…