Adds lib/audit-coverage.py: queries Jellyfin live for every series, every
episode, and every movie; classifies each by whether the English subtitle
comes from a sidecar, embedded stream, or doesn't exist; renders a
Markdown report with one-char-per-episode bars for visual scanning. Output
file is processes/subtitles/COVERAGE.md, regenerated on demand.
v2 sub-rest-fetch.py and v3 sub-a7d-fetch.py now invoke the audit at end
of a successful run, so the committed coverage file stays in sync with
library state without manual intervention. v3.5 yt-fetch path skips the
auto-call since it doesn't speak to Jellyfin directly; run audit manually
after copying YT sidecars to nullstone.
README.md surfaces the audit at the top so anyone landing in the recipe
folder sees current state before starting a run.
Adds lib/sub-rest-fetch.py: direct OpenSubtitles REST, looks up subs by
per-episode IMDB id (e.g. tt0511631) instead of the plugin's
(parent_imdb_id, season, episode) combo path. This sidesteps shows where
library numbering diverges from OpenSubtitles' catalogued numbering --
American Dad uses Hulu S1=7 eps; OS uses Fox S1=23 eps; the plugin path
returns 0 hits past S01E07 even though every per-episode IMDB id is
correct.
Recipe README updated to surface the two paths (v1 plugin / v2 REST) and
recommend v2 by default. American Dad run log now shows 19/58 episodes
subbed (S01 7/7 via v1, S02E01-E12 via v2). S02E13-S04 (39 eps) deferred
to next 20/day quota windows.
Quirk fixed in v2: OpenSubtitles /download endpoint consistently returns
HTTP 503 to Python urllib.request despite identical headers/body via curl.
_curl() shim routes all OS API calls through curl. Each 503 still
consumes a download slot, so urllib path was unsafe to retry on.
