Add configuration scope suite registration

docs/roadmap/implementation.md

@@ -1,6 +1,6 @@
 # Initial CommandKit implementation plan
 
-Status: implementation underway; Stages 1-6 complete and Stages 7-14 pending.
+Status: implementation underway; Stages 1-7 complete and Stages 8-14 pending.
 
 Date: 2026-10-07.
 
@@ -448,7 +448,7 @@ implemented boundary.
 
 ## Stage 7: implement configuration suites, scopes, and selector preflight
 
-**Status:** pending. **Prerequisite:** Stage 6.
+**Status:** complete. **Prerequisite:** Stage 6.
 
 Add the following root contracts in `config.go`/`selectors.go`:
 
@@ -539,6 +539,16 @@ unsupported all before callbacks, explicit/omitted selector applicability,
 typed empty/false/zero context selectors, and factories uninvoked on help/usage.
 Use a small custom scope fixture; owning library helpers arrive next.
 
+**Completion evidence:** added typed configuration suite, scope, selector, view,
+and request contracts; validates scope IDs, capability metadata, selector
+bindings, and family collisions. `config scopes` reports installed capability
+intersections in stable text/YAML inventories without creating a runtime context
+or acquiring configuration. Added selector preflight and per-scope context
+projection for later operation handlers, including explicit empty/false/zero
+values and clearing inapplicable bound fields. `go test ./...` passes; the CLI
+reference describes scope discovery. Configuration operation handlers remain
+sequenced in Stages 8-11.
+
 ## Stage 8: integrate ConfigKit and implement validation
 
 **Status:** pending. **Prerequisite:** Stage 7.