FastChannels v4.4.0

• New sources — Added Adult Swim marathon channels and HDHomeRun/SiliconDust local tuner integration, including lineup discovery, MPEG-TS handling, and XMLTV guide support.
• Browser playback — Improved Pluto and Fubo playback across Chrome and iOS, added native Safari/iOS HLS behavior, and disabled unsupported in-browser playback for HDHomeRun MPEG-TS channels.
• Fubo reliability — Reworked guide retrieval around the PAPI source, enriched program metadata, widened discovery, and fixed segment buffering and guide visibility issues.
• Channels DVR integration — Fixed feed Gracenote detection, MPEG-TS source formatting, and push error reporting.
• EPG performance — Isolated XML refresh work in a subprocess to release memory after generation and sped up XMLTV output.
• Admin improvements — Added source category sections, a Feeds summary card, guide half-hour alignment, custom-channel status tooltips, and safer feed actions for names containing apostrophes.
• Setup defaults — Fresh installs now start the Default feed at channel 5000 and provide clearer first-run server URL guidance, including placeholder detection.
• Fixes — Corrected custom-channel scrape status, Plex music-video categorization, category backfill scope, and several source-specific playback and metadata issues.