Record Narratio upgrade validation

docs/roadmap/application-upgrade-sequence.md

@@ -32,14 +32,14 @@ Seriatim is unchanged by this sequence.
 
 Release-summary and migration-guidance triage is complete. Standalone
 Scriptorium, Audita, and Notarius adoption are complete after independent review;
-Narratio is next. Add the numbered feature
-link beside each item when its roadmap is created; check it off after
+Narratio standalone implementation awaits independent review. Add the numbered
+feature link beside each item when its roadmap is created; check it off after
 independent review and closeout.
 
 - [x] [Feature 0018: Scriptorium adoption](features/0018-scriptorium-v0-15-adoption.md) — complete through role `b174c8c`; independent review found no remediation issues.
 - [x] [Feature 0019: Audita adoption](features/0019-audita-v2-adoption.md) — complete through role `c3dd59f`; independent review found no remediation issues.
 - [x] [Feature 0020: Notarius adoption](features/0020-notarius-v0-8-adoption.md) — complete through role `6aef48b`; independent review found no remediation issues; suite unchanged.
-- [ ] [Feature 0021: Narratio adoption](features/0021-narratio-v3-adoption.md) — roadmap and staged plan approved; ready for implementation.
+- [ ] [Feature 0021: Narratio adoption](features/0021-narratio-v3-adoption.md) — standalone role implemented through `3c0700b`; independent review pending, suite unchanged.
 - [ ] Suite integration — feature roadmap not yet created.
 
 ## Adoption Boundaries

docs/roadmap/features/0021-narratio-v3-adoption.md

@@ -1,6 +1,6 @@
 # Feature 0021: Adopt Narratio v3.0.0 in the Standalone Role
 
-Status: ready
+Status: in_progress — implementation complete; independent review pending
 
 ## Summary
 
@@ -205,6 +205,20 @@ review retry/timeout budgets rather than copying retired tuning mechanically.
 
 None identified for this standalone scope.
 
+## Implementation Evidence
+
+- Standalone role commits: `a28f22c` (v3 interface and migrated fixtures),
+  `45f6836` (selector and credential-list coverage), and `3c0700b` (upgrade
+  guidance). Production tasks, suite dependencies, collection, and consumer
+  remain unchanged.
+- `bash -n` and the local integration harness passed. The harness includes
+  syntax check and production-profile lint and exercised native offline
+  baseline, named, and explicit-empty validation, selected v2.1.0 behavior,
+  supplied-Go recovery, synthetic credential loading, and clean immediate
+  repeats. Role and workspace whitespace checks passed.
+- The implemented role awaits independent review. Coordinated suite migration
+  remains separate follow-up work.
+
 ## Upstream References
 
 - [Narratio v3.0.0 release](https://gitea.maximumdirect.net/eric/narratio/src/tag/v3.0.0/docs/releases/v3.0.0.md)

docs/roadmap/implementation.md

@@ -1,6 +1,6 @@
 # Implementation Plan 0021: Adopt Narratio v3.0.0
 
-Status: in_progress
+Status: implemented — independent review pending
 
 Target executor: GPT-5.6-Terra
 
@@ -192,6 +192,8 @@ Commit as `Test Narratio selectors and credential lists`.
 
 ## Stage 3: Document Upgrade Ownership and Hand Off for Review
 
+Completion: complete (2026-09-28).
+
 ### Required Policy Review
 
 Read workspace `AGENTS.md`, `docs/orientation.md`, `docs/conventions.md`,
@@ -271,6 +273,12 @@ Plan approved.
   explicit empty lists/selectors without synthetic values, and clean immediate
   repeats passed. The older selected-version and supplied-Go cases remained
   valid. Role `git diff --check` passed.
+- Stage 3: role commits `a28f22c`, `45f6836`, and `3c0700b` provide the
+  implementation and upgrade guidance. The README was checked against tagged
+  v3.0.0 release, configuration, integration, and operations contracts.
+  Documentation-only changes reuse Stage 2 behavior evidence; role/workspace
+  `git diff --check` and `scripts/status` passed. F0021 remains open for
+  independent review.
 
 ## Open Questions