Complete audit remediation and verification

docs/roadmap/implementation.md

@@ -2,8 +2,8 @@
 
 ## Baseline and execution
 
-This plan targets `59bb074` on 2026-11-01. The worktree was clean when planning
-began. The production code still contains the findings recorded in
+This plan targeted `59bb074` on 2026-11-01. The worktree was clean when planning
+began. At that baseline, production code contained the findings recorded in
 [correctness.md](correctness.md) and [interfaces.md](interfaces.md).
 [remediation.md](remediation.md) defines the agreed behavior and scope; this
 plan defines how to reach it.
@@ -412,7 +412,13 @@ Validate affected local links/fragments and prose whitespace.
 
 ## Stage 10: Verify the complete sprint and close the findings
 
-**Status:** pending. **Depends on:** all preceding stages.
+**Status:** complete. The complete offline `go test ./...` and
+`go test -race ./...` suites and compiled `go run ./internal/apicheck` check
+pass with `GOTOOLCHAIN=local GOPROXY=off GOSUMDB=off`. Additional discovery
+failure and synchronized cancellation checks pass with `-race`. Changed local
+Markdown links and fragments and whitespace checks pass. Public types and
+receipt schema remain unchanged; the finding records contain completion evidence.
+**Depends on:** all preceding stages.
 
 1. Resolve every deferred check, format changed Go files, and inspect the final
    diff for changes outside the agreed remediation scope. Verify all eight