fix(install-e2e): stage classified receipts at an artifact-safe path

.github/workflows/install-e2e-windows-run.yml

@@ -141,12 +141,19 @@ jobs:
         shell: powershell
         run: powershell -NoProfile -ExecutionPolicy Bypass -File tests\install\windows-e2e.ps1 -Phase update -InstallMethod "${{ inputs.install-method }}" -Route "${{ inputs.update-method }}" -InstallRef "${{ inputs.install-ref }}" -SetupExeUrl ${{ inputs.setup-exe-url }}
 
+      - name: Stage known-failure receipt
+        if: steps.update.outputs.known_failure != ''
+        shell: pwsh
+        run: |
+          New-Item -ItemType Directory -Path gui-e2e-proof -Force | Out-Null
+          Copy-Item -LiteralPath (Join-Path $env:HERMES_E2E_WORKROOT 'known-failure.json') -Destination gui-e2e-proof/known-failure.json
+
       - name: Upload known-failure receipt
         if: steps.update.outputs.known_failure != ''
         uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
         with:
           name: install-e2e-known-${{ steps.update.outputs.known_failure }}--${{ inputs.leg-id }}
-          path: ${{ env.HERMES_E2E_WORKROOT }}\known-failure.json
+          path: gui-e2e-proof/known-failure.json
           if-no-files-found: error
           retention-days: 14