Stage 1-2 of the crabidy-store dev-flow (architecture/crabidy-store.md,
quality/, plan/): one /crabidy provider replacing queues/bookmarks/
captures, with track tomls linking into a content-addressed store that
de-duplicates by provider id and content hash.
Additive, build stays green:
- proto: Track.provider_item_id + is_captured; LibraryNode.is_captured;
LibraryNodeChild.is_captured (swept all literals).
- fsdy: Playable::Store + PlayableSpec.store, 5-way cardinality,
from_track_store, Client.with_store_root + store resolution.
- crabidy_store.rs: StoreSidecar/ProviderEntry/StoreIndex/CrabidyStore
type + method surface (bodies stubbed for the implement stage).
- supersede bookmarks/captures/capture-deletion docs.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>