with_retries caught bare Exception with a type whitelist, masking real bugs
as network errors under retry/backoff - narrowed back to NetworkError.
fetch_api_languages was writing full lyrics text for every language into
lyrics_text.json via its track_supplement side channel, breaking the
documented RU-only invariant and letting analyze feed foreign-language
lyrics through the Russian-only prompt - now gated on normalize_api_language.
dedupe_playlists logged the found duplicate count as "removed" even when
a mid-loop network/API error cut deletion short.
THEME_PATTERN's relaxed regex allowed 2-char themes, contradicting its own
test; current_themes was hoisted out of the analyze loop so later prompts
never saw themes found earlier in the same run. Both reverted to intended
behavior, docs updated to match.
Медленная/нестабильная сеть до api.music.yandex.net роняла весь процесс
при первом же таймауте (5с по умолчанию у библиотеки). Добавлен
with_retries с экспоненциальной паузой на всех сетевых точках входа
(fetch, language, genres, apply, client.init), таймаут запроса поднят
до 20с (настраивается в config.toml). Заодно поправлен скрытый баг:
language.py раньше кэшировал таймаут как "текста нет" навсегда -
теперь только настоящий NotFoundError трактуется так.
