rtl-de-at-switch

GET  /source.ts   302 redirect to the feed that should be on air
GET  /status      current decision, schedule and epg health (json)
GET  /override    current manual override
POST /override    ?mode=auto|default|alternate&duration=2h&note=...
POST /refresh     force an epg refresh
GET  /metrics     prometheus metrics
GET  /healthz     liveness
GET  /readyz      readiness