fix: collect independent CI failures before release

Co-authored-by: Ouroboros <311266734+ouroboros-agent@users.noreply.github.com>

.github/workflows/ci.yml

@@ -120,8 +120,6 @@ jobs:
         id: setup_node
         with:
           node-version: '22'
-          cache: 'pnpm'
-          cache-dependency-path: site/pnpm-lock.yaml
       # Independent checks keep running after a red sibling; setup outcomes suppress cascaded noise.
       - name: Verify generated Pages output
         if: ${{ !cancelled() && steps.setup_pnpm.outcome == 'success' && steps.setup_node.outcome == 'success' }}
@@ -253,7 +251,7 @@ jobs:
           install: rsync
       - name: Select Windows POSIX test utilities
         id: select_posix_tools
-        if: ${{ !cancelled() && runner.os == 'Windows' }}
+        if: ${{ !cancelled() && runner.os == 'Windows' && steps.posix_tools.outcome == 'success' }}
         shell: pwsh
         run: '"${{ steps.posix_tools.outputs.msys2-location }}\usr\bin" >> $env:GITHUB_PATH'
       # Independent checks keep running after a red sibling; setup outcomes suppress cascaded noise.
@@ -818,6 +816,7 @@ jobs:
         uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
         with:
           name: e2e-live-run
+          overwrite: true
           path: |
             ${{ runner.temp }}/e2e_live/run_manifest.json
             ${{ runner.temp }}/e2e_live/result_index.jsonl
@@ -1068,6 +1067,7 @@ jobs:
         uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
         with:
           name: android-native-ui-api-${{ matrix.api-level }}
+          overwrite: true
           path: |
             ${{ runner.temp }}/android-smoke/screenshots/
             ${{ runner.temp }}/android-smoke/emulator.log

docs/development/14-build-and-ci.md

@@ -84,7 +84,7 @@ Prerelease artifacts may intentionally be unsigned and must report that state; s
 
 The artifact pipeline — per-platform archive smokes, native Linux packages, the AppImage custody chain, SBOM and attestation binding, and the seven-required-desktop plus optional-Android release job — lives in ARCHITECTURE §8 and `.github/workflows/ci.yml`. The honesty invariants a change must preserve:
 
-- On a valid release tag, `release-preflight` records the tag/VERSION and prerelease state before checking its required job results. A failed test prerequisite makes the preflight red but permits the desktop build to run as a diagnostic rehearsal; this can consume configured signing/notarization and records attestations in the repository and public transparency log; artifacts remain downloadable from the run, but no GitHub Release is published; the release job still requires a successful preflight. Android publisher builds retain their Android proof dependencies because the signed source/APK pair is optional release content, so failed or skipped Android proofs exclude both optional assets; desktop diagnostics remain evidence only and cannot publish a Release.
+- On a valid release tag, `release-preflight` records the tag/VERSION and prerelease state before checking its required job results. A failed test prerequisite makes the preflight red but permits the desktop build to run as a diagnostic rehearsal; this can consume configured signing/notarization and records attestations in the repository and public transparency log; artifacts remain downloadable from the run, but no GitHub Release is published; the release job still requires a successful preflight. Android publisher builds retain their Android proof dependencies because the signed source/APK pair is optional release content, so failed or skipped Android proofs exclude both optional assets; the diagnostic build itself never invokes the release job; if the required tests later pass on a rerun, that same-tag payload may be published with provenance bound to the same SHA.
 - Publication is draft-first with a per-tag concurrency group; the remote
   annotated tag is revalidated against the event SHA immediately before
   draft creation AND again before publication, and a published release is