Integrate selected builds with candidate workflows

README.md

@@ -3,9 +3,10 @@
 ReleaseKit is an opinionated Go library and executable for a shared release
 process. The Go module, root `releasekit` facade, `buildinfo` runtime package,
 local candidate check, source-tag publication API, selected-target build API,
-and `version`, `check`, and `publish` commands are implemented. ReleaseKit's
-source-only maintainer procedure is documented. The build command and delivery
-remain future work. The [product roadmap](docs/roadmap/releasekit.md) and
+and `version`, `check`, `publish`, and `build` commands are implemented.
+ReleaseKit's source-only maintainer procedure is documented. Hosted delivery
+and ReleaseKit's own binary artifacts remain future work. The
+[product roadmap](docs/roadmap/releasekit.md) and
 [implementation plan](docs/roadmap/implementation.md) describe their selected
 behavior and sequence.
 
@@ -43,8 +44,8 @@ failure recovery.
   version injection, and delivery, with the initial implementation plan.
 - [Contributor guide](docs/development.md): orientation, validation, and selective
   policy reading.
-- [CLI contract](docs/cli.md): the `version`, local `check`, and source
-  `publish` commands.
+- [CLI contract](docs/cli.md): the `version`, `check`, `publish`, and `build`
+  commands.
 - [Configuration](docs/config.md): profile fields and child-command settings.
 - [Runtime version guidance](docs/consumers/runtime-version.md): how applications
   read their embedded version through `buildinfo`.