docs(auth): record final review fix round 1 evidence

.superpowers/sdd/2026-08-18-thothii-authentication-remediation/task-4-report.md

@@ -1,6 +1,36 @@
 # Task 4 authentication remediation recertification (sanitized)
 
-## Result
+## Fix-round-1 recertification — Windows remediation PASS
+
+- Exact source: `10cd66fe6a5b484a4dc569326a228c1c5484a5d4` on `feat/thoth-auth`.
+- Authorized workflow: completed run `32141428407`,
+  https://github.com/mptyl/ThothII/actions/runs/32141428407, exact matching head SHA.
+- Native job: `Windows clone and Compose contract`, job `95724751282`.
+- Required native step: `Run native Windows retained-capability tests` — **PASS**.
+- Exact unfiltered command:
+  `go test ./internal/safeio ./internal/backup ./internal/authstorage -count=1`.
+- Package evidence: `internal/safeio` PASS (`8.230s`), `internal/backup` PASS (`5.195s`),
+  `internal/authstorage` PASS (`8.383s`). This includes explicit native Windows
+  StageArchive retained-capability and concurrent claim-consume coverage.
+- The later `Verify Windows clone contract` step failed independently at
+  `scripts/test-windows-clone-contract.ps1:208`: PowerShell parsed `$remoteYaml:` as an invalid
+  variable reference. This baseline deployment-contract failure does not change the native Go
+  package result.
+- The optional `Native Windows Docker Desktop/WSL2 startup` job was skipped by workflow
+  conditions. It is `NOT_RUN` / `BLOCKED`, because no Docker Desktop/WSL2 command executed.
+- The workflow reached `completed` with conclusion `failure`: the native authentication step is
+  PASS, while the later clone-contract, LF/Compose, and Linux Docker baseline steps are FAIL.
+- Existing LF/Compose and Linux Docker failures repeated before downstream work. Skipped commands
+  are `NOT_RUN` / `BLOCKED`, not executed failures. External L2/PSD/provider gates remain
+  `PENDING`.
+
+All four final-review Important findings are addressed. Authentication implementation is complete
+for this fix round; overall release readiness remains `FAIL` because the unrelated deployment,
+Compose, harness/Ruff, Docker-runner, and external/manual gates above are not green.
+
+The section below is retained as historical evidence for the pre-fix frozen source.
+
+## Historical pre-fix result
 
 - Frozen source under test: `b31b27e5845ffd3adf311429367319beaba263c7` on `feat/thoth-auth`.
 - Freeze check: PASS. No tracked source changed during certification. The only untracked paths
@@ -74,7 +104,7 @@ was run locally after the failure.
 ## Evidence and provenance
 
 - Current machine-readable matrix: `.artifacts/task-15/automated-gates.json`; SHA-256
-  `e0cb84185354b740ce97c8d21d365160b321c88722d08cc31b668ec4cab0353c`.
+  `5c110b7b2607693de078def441b10290c5a29024c83b7e5a0ced894b72b7507f`.
 - Current requested report: this file (SHA-256 recorded after the evidence commit if needed for
   external indexing).
 - Historical Docker image manifest: `.artifacts/task-15/unified-docker-images.json`, unchanged