Verify shared provider credentials across both adapters

docs/roadmap/implementation.md

@@ -1,6 +1,6 @@
 # Implementation Plan: Audita v2 and Shared Provider Credentials
 
-Status: In progress.
+Status: Complete (2026-09-25).
 
 ## Scope and working instructions
 
@@ -421,7 +421,18 @@ implicit credential aliases, or retired CLI/report expectations.
 
 ## Stage 8: Verify assembled behavior and audit scope
 
-Status: Not started.
+Status: Complete (2026-09-25).
+
+Verification: the offline app-level shared/Audita-only credential scenario
+passed with config bootstrap, both subprocess fixtures, safe inspection/logging,
+and ordinary polish reports. The tagged Audita v2.0.0 CLI validated its minimal
+configuration and produced a transcript plus all three reports with an empty
+module sequence and no provider request. Active-reference and scope audits found
+no removed production fields or compatibility path; remaining old names occur in
+migration guidance, explicit-rejection checks, or historical fixtures. `go test
+./...`, `go test -race ./...`, `go vet ./...`, `go build ./...`, `go test
+./internal/doccheck`, `go test ./internal/config -run
+'^TestExamplesLoadAndValidate$'`, and `git diff --check` passed.
 
 Preparation: cumulative diff, this plan, feature roadmap, app configuration/
 subprocess integration tests, and all policies.