- docs/guides/application-capabilities.md: the .with(...) menu, by-reference
wiring, and a recipe for writing a capability; disambiguates the overloaded
'capability' (topology vs application) flagged in DX review; wired into the book.
- Deprecate ApplicationScore, features::Monitoring, features::PackagingDeployment
(+ doc-deprecate the ApplicationFeature trait) in favour of harmony_app +
ComposeDeploy/.with(...) (ADR-026). Legacy examples now warn; harmony lib is
warning-clean (internal self-refs allowed).