fix(node,hub): HEVC transcode fallback, live-add progress, per-group TMDB toggle

2026-08-24T13:57:41Z

Three bugs found live testing the Videos app against a real HEVC/EAC3 show, plus a design change requested afterward: - Streaming always did "-c:v copy", which faithfully reports a source's real hev1 codec string but is unplayable in a browser with no HEVC decoder (most Chrome/Linux builds). The node now transcodes to H264 whenever the probed codec is browser-incompatible (media_probe.py's new BROWSER_INCOMPATIBLE_VIDEO_CODECS), with a `transcode_incompatible_video` node.toml opt-out for operators who know their viewers already decode it. - Dropping a whole season into an already-watched folder gave no scanning indicator and no progress bar: IndexProgress was only ever updated by the two bulk scan paths, never by the real-time per-file watchdog path (_schedule_update/_debounce/_update_entry). That path now accounts a "burst" the same way, without double-counting a file rewritten mid-debounce. - A stray literal "0" rendered in the video detail modal when there was no TMDB match (`meta.confidence` is 0, and `0 && x` renders "0" in JSX/htm, not nothing) — `confident` is now a real boolean. - Whether TMDB is used at all moves from a node-wide setting to per-group (OP_TMDB_ENABLED/tmdb_enabled/tmdb_enabled_ack, scoped like OP_VIDEO_ROOT): an operator running a real media-library group alongside test/demo groups on one node wants outbound TMDB traffic for the one that needs it, not all of them. The custom API token and query language stay node-wide, one shared credential/cache (tmdb_config/OP_TMDB_CONFIG, unchanged reasoning). MNP_VERSION 0.6 -> 0.7, additive. Co-Authored-By: Claude Sonnet 5 Claude-Session: https://claude.ai/code/session_01LAmyXtc6dAADsH23ydXQpY

meshbay.git/packages/meshbay-node/tests/test_stream_hevc_transcode.py, branch v0.9.0

fix(node,hub): HEVC transcode fallback, live-add progress, per-group TMDB toggle