docs(auth): record fix round 2 certification

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

@@ -1,16 +1,16 @@
 # Task 4 authentication remediation recertification (sanitized)
 
-## Fix-round-1 recertification — Windows remediation PASS
+## Fix-round-2 recertification — 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`.
+- Exact source: `2a9359071257f9b8a71d36ec2bbb25b161003f81` on `feat/thoth-auth`.
+- Authorized workflow: completed run `32147345625`,
+  https://github.com/mptyl/ThothII/actions/runs/32147345625, exact matching head SHA.
+- Native job: `Windows clone and Compose contract`, job `95744249248`.
 - 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
+- Package evidence: `internal/safeio` PASS (`22.058s`), `internal/backup` PASS (`7.161s`),
+  `internal/authstorage` PASS (`16.088s`). 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
@@ -20,13 +20,15 @@
   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`.
+- Existing LF/Compose job `95744249458` and Linux Docker job `95744249354` 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.
+Finding disposition is explicit: the three original remediation Important findings remain
+**RESOLVED**; the fix-round-2 lifecycle Important is **ADDRESSED**; and the temporary Windows
+diagnostic-matrix Minor is **ADDRESSED**. Authentication remediation is **PASS**. This does not
+change overall release readiness: executed baseline gates remain **FAIL**, while unavailable
+external/manual gates remain **PENDING**.
 
 The section below is retained as historical evidence for the pre-fix frozen source.
 
@@ -104,9 +106,11 @@ was run locally after the failure.
 ## Evidence and provenance
 
 - Current machine-readable matrix: `.artifacts/task-15/automated-gates.json`; SHA-256
-  `5c110b7b2607693de078def441b10290c5a29024c83b7e5a0ced894b72b7507f`.
+  `6c516db5c2064c4a4a2e5f25961b993cd4a8fe020bbbb822fbac7faa0c119599`.
 - Current requested report: this file (SHA-256 recorded after the evidence commit if needed for
   external indexing).
+- Current fix-round report:
+  `.superpowers/sdd/2026-08-18-thothii-authentication-remediation/fix-round-2-report.md`.
 - Historical Docker image manifest: `.artifacts/task-15/unified-docker-images.json`, unchanged
   because no new immutable-source Docker smoke ran. Its retained historical SHA-256 is
   `9c8dec4546909fd93799dbcf374bcb3a89bc46cfe0fd482472c0cbe757ddf5b6`, bound to historical source