New package alfred/domain/release/parser/ lays the foundation for the
release parser refactor (specs in memory). Exposes:
- Token: frozen VO carrying text + stream index + TokenRole + extra dict.
with_role() returns a new instance (no mutation).
- TokenRole: str-backed enum split into structural (TITLE/YEAR/SEASON_EP/
GROUP), technical (RESOLUTION/SOURCE/CODEC/AUDIO_*/BIT_DEPTH/HDR/
EDITION/LANGUAGE), and meta (SITE_TAG/UNKNOWN) families.
- pipeline.strip_site_tag(): pulls a [site.tag] prefix or suffix.
- pipeline.tokenize(): release name -> list[Token] (all UNKNOWN),
string-ops split on kb.separators (no regex, per CLAUDE.md).
- pipeline.annotate(): documented stub. Walk order recorded in docstring
(group right-to-left, then season/episode, year, tech, title).
Legacy parse_release in release.services remains the live implementation
until the annotate step lands. Scaffolding tests verify Token API,
site-tag stripping (prefix/suffix), and tokenize output shape.
Refs: project_release_parser_v2_specs (memory)
