Both became required parameters of dl.result() when adaptive worker scaling
landed, but the API path calls it directly and never supplied them, so every
API-initiated download raised TypeError. Defaults match the click options.
Renames 314 defs and 41 module/class-level constants. Keeps 11 names underscored where the stripped form collides in scope, plus 5.5.0 shims for the three symbols external service repos call.
Adds prompt_user() and uses it for local, remote, and Proton VPN input. Replaces click.prompt on the remote auth path, which ignored the theme and overlapped active Live displays. Remote auth now exits on EOF instead of POSTing an empty answer and spinning the poll loop.
api-only/remote-only serve now authenticates every serve.users key (str-coerced), not just api_secret, so per-user service allowlists apply. RemoteClient tries X-Secret-Key then X-Api-Key on 401 (sticky winner); remote_services.auth_headers prepends extra header names to the defaults.
Adds GET /api/download/jobs/{job_id}/events with snapshot, status, progress and terminal events, query-param auth for EventSource in both serve modes, atomic progress-file writes, and stream-safe CORS and compression middleware.
--anilist supersedes --animeapi (REST: anilist_id); the keyless AniList
GraphQL provider joins the registry with title search, mal: ID lookup,
an ANILIST mkv tag, and the anilist_title_language config option.
Services mark anime via Service.ANIME / Title.anime for anilist-first
metadata resolution with fall-through.
Supplied IDs resolve directly via a shared resolve_by_ids and never fall back to title search; metadata_providers gains per-kind ordering and a disable_metadata switch stops all automatic lookups while explicit IDs keep working.
BREAKING: --tmdb/--imdb/--tvdb are now mutually exclusive and require a usable provider; --enrich also overwrites original language; the imdbapi provider and imdb_api_enabled are replaced by a keyless imdb provider.
--enrich now sets Title.language when the service left it unset, so video tracks stop falling back to und. Adds original_language to MetadataResult (TMDB, TVDB, OMDb, IMDxAPI) and falls back to OMDb for --imdb, which previously did nothing while imdb_api_enabled defaults to false.
Document tvdb_api_key, tvdb_pin, tvdb_order and metadata_providers, the
--tvdb and --tvdb-order flags with their behaviour when an order does
not cover a whole series, the new REST API parameters, and the Matroska
TVDB2 tag prefixes.
Error messages named the resolved language for a user who only ever defaulted to orig. Audio tracks now carry is_original, resolved through Tracks.by_language so it agrees with the downloader.
imSp4rky