senke 45bdf060ca feat(backend): add social groups, wishlist, cart, and playlist export endpoints ... - Add Group and GroupMember models with CRUD service methods - Implement social group endpoints: create, list, get, join, leave - Add WishlistItem model with get/add/remove service methods - Add CartItem model with get/add/remove/checkout service methods - Create handlers for marketplace wishlist and cart operations - Register playlist export (JSON/CSV) and duplicate routes - Enable PLAYLIST_SHARE and NOTIFICATIONS feature flags Co-authored-by: Cursor <cursoragent@cursor.com>		2026-02-12 22:48:50 +01:00
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web	feat(backend): add social groups, wishlist, cart, and playlist export endpoints	2026-02-12 22:48:50 +01:00