Record private import parser completion

docs/roadmap/implementation.md

@@ -1,6 +1,6 @@
 # Implementation Plan: Import Discovery and Dependency-Ready Ordering
 
-Status: Stages 1–7 complete; 12 implementation stages remain.
+Status: Stages 1–8 complete; 11 implementation stages remain.
 
 ## Authority, baseline, and execution
 
@@ -391,6 +391,13 @@ Acceptance: parser/policy tests cover omitted, explicit false, explicit empty,
 application defaults, and invalid default patterns without source access. No
 new YAML syntax is accepted by public loading yet.
 
+Completion: implemented in commit `b498e5b` (`Define private import defaults
+and declaration parsing`). Verified with focused parser/policy tests, the full
+engine suite, `go vet ./...`, `go build ./...`, a focused engine race run, and
+`git diff --check`. The everyday check still reaches the two known consumer
+sequence-order expectation failures scheduled for Stage 18; public loading
+continues to use the existing parser. Stage 9 onward remains.
+
 ## Stage 9 — Implement named-file selection and exclusions
 
 Build a private selector result containing normalized lexical candidates and