One product, one lifecycle

Strategy, content, publications and decision now sit inside a single product card instead of top-level launch flows.

Separate operator surface

Review Queue exists as a dedicated section, but channels are no longer first-class navigation.

Brand-driven accounts

Brands now hold shared channel accounts, while products stay focused on lifecycle and content flow.

Infrastructure preserved

Existing Next.js, Drizzle, SQLite and utility layers stay in place while the domain model switches to `product-first`.