Add language filter controls for projected live channels, preserve backend language views in the browser, and separate built-in EPG sources from custom sources.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Add a channelVariantGrouping service that normalizes channel names
(strips region prefixes and quality tokens) to fingerprint duplicate
stream entries and cluster them under a single logical channel with
quality/source variants. Wire it into the Live TV channel list and
player variant selection, reducing duplicates without destructively
merging streams.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
