dlhd.st HLS Proxy
=================

GET /channels                         -> JSON list of all channels (each with all sources)
GET /channels?format=m3u              -> M3U playlist of all channels (default source)
GET /events                           -> JSON schedule with channel proxy URLs
GET /secure-url?url=<m3u8_link>       -> JSON securelink URL (session inserted, bound to caller IP)
GET /stream-{id}/index.m3u8           -> rewritten HLS master playlist, default source (cached)
GET /stream-{id}-{source}/index.m3u8  -> rewritten HLS master playlist for a specific source
GET /{session}/stream-{id}-{source}/index.m3u8 -> same, authorised by a securelink session instead of a token
    sources: 1=stream, 2=cast, 3=watch, 4=plus, 5=casting, 6=player
    auth: ?token=... required via hostname; direct LAN/IP access exempt
GET /play?url=<dlhd_stream_url>       -> rewritten HLS master playlist (legacy)
GET /extract?url=<url>                -> JSON scrape result
GET /proxy/<b64>?referer=...          -> proxied playlist / 302 redirect segment