JP IPTV Clean 2.2.1

Playlist: https://jp-iptv-clean-v22.pages.dev/JP.m3u
Status:   https://jp-iptv-clean-v22.pages.dev/status.json
Refresh:  https://jp-iptv-clean-v22.pages.dev/refresh

V2.2.1:
- broader Japan + Japanese-language discovery
- Free-TV Japan parser
- strict duplicate suppression
- multi-candidate fallback per channel
- core 6 priority checks
- rotating health checks within Cloudflare Free limits
- subscription-channel names are retained; no login/DRM/token bypass