Renames v5 `attach` to `include`. GET routes take one comma-separated `include` query param (`?include=chunks,memories`); search takes every option in the JSON body, with `include` as an object of booleans. Also fixes the `forgotten` description: it does let forgotten memories come back as primary results. Pairs with supermemoryai/mono#3410.
Document every migrated workflow, request and response change, typed-filter conversion, verification strategy, and rollout step so agents can upgrade integrations deterministically.
Add Legacy and Latest reference versions, organize the V5 operations by workflow, and introduce focused overview pages backed by the generated V5 OpenAPI document.
