- api/video/wishlist.py: GET /wishlist (paged movie|show tab, or counts-only),
/wishlist/counts, POST /wishlist/add (movie OR show+episodes), /wishlist/remove
(scope movie|show|season|episode), /wishlist/check (hydration). Registered in
the blueprint.
- Dashboard 'wishlist' stat now reflects the real curated count (was a 0 stub).
Tests: +6 API (add movie/episodes, body validation, scoped removes, hydration,
routes registered). API suite 30 + DB suite 68 passing.
