6c8f0167e5
Introduces a global Products catalog plus per-family overrides and private FamilyProducts, exposed via /api/products with a merged search. Shopping list items and recipe ingredients gain optional ProductId/FamilyProductId links, and a new ProductStoreSection table remembers which section a product was last placed in at a given store so future adds auto-assign the right section. Frontend gets a reusable ProductTypeahead component, wired into list-item add and recipe ingredient entry with free-form fallback. A startup CatalogSeeder loads ~115 curated staples from an embedded JSON resource via INSERT ... ON CONFLICT DO NOTHING; skipped under the Testing environment so integration tests keep a clean slate.