Expose invocation reporting mode

docs/roadmap/implementation.md

@@ -1,6 +1,6 @@
 # Shared debug binding implementation plan
 
-Status: planned; no implementation stages complete.
+Status: in progress; Stage 1 complete.
 Baseline: `6727d22ce6e1ac668b56a3e6d8fa5f7a06e54d88`.
 Execution audience: Luna coding agent.
 
@@ -70,6 +70,11 @@ publish releases, push refs, or implement Audita artifact capture.
 
 ## Stage 1 — Expose the resolved reporting mode
 
+**Complete.** The invocation exposes the existing reporter selection, including
+zero and finalized values. Focused reporting and public accessor checks passed
+with Go 1.27.0 and offline module resolution; concurrent reads also passed with
+`-race -count=1`.
+
 Primary files: [reporter.go](../../reporter.go),
 [identity.go](../../identity.go), [execute.go](../../execute.go).