Register http, https, httpx handlers with content-type detection:
- image/jpeg: single JPEG snapshots via go2rtc image.Open
- multipart/x-mixed-replace: MJPEG streams via mpjpeg.Open
- application/vnd.apple.mpegurl: HLS via hls.OpenURL
- auto-detect fallback via magic.Open (MPEG-TS, raw MJPEG, etc.)
Uses go2rtc tcp.Do for Basic + Digest auth and TLS handling.
eduard256