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

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 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LAmyXtc6dAADsH23ydXQpY

1 files changed, 8 insertions, 2 deletions

diff --git a/packages/meshbay-common/src/meshbay_common/__init__.py b/packages/meshbay-common/src/meshbay_common/__init__.py
index 938f5d4..53c1058 100644
--- a/packages/meshbay-common/src/meshbay_common/__init__.py
+++ b/packages/meshbay-common/src/meshbay_common/__init__.py
@@ -1,6 +1,6 @@
 """MeshBay common — shared crypto primitives and protocol types."""
 
-__version__ = "0.6.0"
+__version__ = "0.7.0"
 # 0.2: added PING/PONG, and `before`/`has_more` on chat history. Both are
 # additive — an 0.1 peer sends no `before` and gets the newest page, which is
 # what it wanted — so this is a MINOR bump, not a MAJOR one.
@@ -18,5 +18,11 @@ __version__ = "0.6.0"
 # and `tmdb_search_req`/`tmdb_search_resp` + `tmdb_override`/`tmdb_override_ack`
 # (an operator correcting a wrong automatic TMDB match, found live against a
 # real show fragmented across TMDB entries per season). All additive.
-MNP_VERSION = "0.6"
+# 0.7: added `tmdb_enabled`/`tmdb_enabled_ack` — whether TMDB is used moved
+# from a node-wide setting to per-group (an operator running a real media
+# library alongside test/demo groups on one node wants outbound TMDB traffic
+# for one, not all of them). `tmdb_config`/`tmdb_config_ack` keep their name
+# but now only cover the token/language, which stay node-wide. Additive: an
+# older client simply never sends/handles the new pair.
+MNP_VERSION = "0.7"
 MHP_VERSION = "0.1"