Iterate providers actually advertised on the episode page (ordered by
SUPPORTED_PROVIDERS preference) instead of always re-resolving VOE.
Each candidate is HEAD-probed before yt-dlp runs, so dead links are
skipped immediately; direct video URLs use a streaming fast path that
bypasses yt-dlp; total failure now logs the exhausted provider list.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
