Backend plumbing for Phase 3 AwardView. New endpoints:
- v2_get_award_page(awardId) → hero + categorized releases
- v2_get_award_albums(awardId, …) → paginated album list
Mirrors Android's AwardDto shape (id, name, image, awarded_at,
magazine, releases, playlists). Follows the label/page pattern for
signing and error handling. Deserializer accepts the V2 generic
{has_more, items} envelope as well as the legacy search-style
{albums: {items, total}} in case Qobuz swaps shapes per account.
cc
vicrodh
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