2º. The 4-slot hook pipeline: how every CRUD operation feeds four systems at once

The article presents a 4-slot hook pipeline that replaces duplicated inline post-processing across CRUD route handlers. A single runPostHooks(ctx) call dispatches to four independent slots — embedding, heat tracking, entity extraction, and changelog — each isolated by try/catch so individual failures never block the user response or other slots. This architecture eliminates code duplication, improves fault tolerance, and keeps route handlers clean across all domain endpoints.