Verify the integrated application and complete the migration

docs/roadmap/implementation.md

@@ -2,7 +2,7 @@
 
 **Last updated:** 2026-09-24
 
-**Status:** Ready for implementation. All stages below are pending. This replaces
+**Status:** Implemented. All twelve stages are complete. This replaced
 the completed testing-overlay prototype plan; its results remain in the
 [boundary findings](library-boundary-findings.md#selected-overlay-extension-2026-09-24).
 
@@ -583,7 +583,21 @@ belongs to Stage 12.
 
 ## Stage 12: Verify the Combined Application and Close the Refactor
 
-**Status:** Pending. **Depends on:** Stages 1–11.
+**Status:** Complete. Controlled HTTP subprocess tests passed for base and testing
+overlay selection, explicit validation-profile and domain overrides, both outbound
+models, accepted repair, domain rejection without semantic retry, warning-only
+repair exhaustion, empty and repeated module pipelines, and safe partial failure
+diagnostics. `go test ./...`, `go build -o ./bin/audita ./cmd/audita`, focused
+race tests for runtime/runner/subprocess code, and both Linux release builds
+passed. The full suite also passed under Go 1.25.5 with offline module access.
+Maintained examples and local documentation links validated; `git diff --check`
+passed. No native macOS or live provider call was run. Release preparation remains
+separate: propose Audita v2.0.0 with [one migration guide](../migrations/v2.md),
+the actual pinned production dependency/license inventory, and LGPL
+notice/source/rebuild-distribution review before publication. No release was
+published here.
+
+**Depends on:** Stages 1–11.
 **Owns:** final integration tests, final defect fixes within this scope, and status/evidence.
 
 1. Complete representative production subprocess workflows against controlled HTTP: