ci(release): remove desktop smoke gate (#5914)

## Summary

- remove the GitHub-hosted desktop smoke job from the desktop release
workflow
- remove the smoke result from manifest assembly dependencies and
promotion conditions
- retain the local smoke tooling for future repair and targeted
validation

The first release execution of this gate spent its full 10-minute
Playwright timeout traversing the 10,000-row fixture, then produced a
987 MB diagnostics upload. All signed platform builds succeeded, but the
smoke prevented manifest publication. This restores the previously
established release boundary while the harness is made suitable for CI
separately.

### Testing

- parsed `.github/workflows/release.yml` with Ruby Psych and asserted
the smoke job/dependencies are absent
- `scripts/test-release-ref-contract.sh`
- exact pushed commit passed the repository pre-push hook

Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Carl <c7ebe626f000404285d3686e1dc74cc07cc60a9754a150041ba132e14bd3e2ec@buzz.block.builderlab.xyz>

.github/workflows/release.yml

@@ -775,65 +775,6 @@ jobs:
             ${{ steps.artifacts.outputs.exe }}
             ${{ steps.artifacts.outputs.sig }}
 
-  desktop-release-smoke:
-    name: Desktop release smoke
-    if: github.repository == 'block/buzz'
-    runs-on: ubuntu-latest
-    needs: setup
-    timeout-minutes: 20
-    permissions:
-      contents: read
-    env:
-      PLAYWRIGHT_BROWSERS_PATH: ${{ github.workspace }}/.cache/ms-playwright
-    steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
-        with:
-          ref: ${{ needs.setup.outputs.source_sha }}
-          persist-credentials: false
-      - uses: cashapp/activate-hermit@cea9af7913204a965fd488637a8d1811bba2e616 # v1
-      - name: Install desktop dependencies
-        run: just desktop-install-ci
-      - name: Get Playwright version
-        id: pw-version
-        run: |
-          PLAYWRIGHT_VERSION=$(cd desktop && node -p "require('@playwright/test/package.json').version")
-          echo "version=$PLAYWRIGHT_VERSION" >> "$GITHUB_OUTPUT"
-      - name: Restore Playwright browser cache
-        id: playwright-cache
-        uses: actions/cache/restore@caa296126883cff596d87d8935842f9db880ef25 # v5
-        with:
-          path: ${{ env.PLAYWRIGHT_BROWSERS_PATH }}
-          key: playwright-${{ runner.os }}-${{ steps.pw-version.outputs.version }}
-      - name: Install Playwright Chromium
-        if: steps.playwright-cache.outputs.cache-hit != 'true'
-        run: cd desktop && pnpm exec playwright install chromium
-      - name: Install Playwright system dependencies
-        run: cd desktop && pnpm exec playwright install-deps chromium
-      - name: Save Playwright browser cache
-        if: steps.playwright-cache.outputs.cache-hit != 'true'
-        uses: actions/cache/save@caa296126883cff596d87d8935842f9db880ef25 # v5
-        with:
-          path: ${{ env.PLAYWRIGHT_BROWSERS_PATH }}
-          key: playwright-${{ runner.os }}-${{ steps.pw-version.outputs.version }}
-      - name: Build test relay
-        run: cargo build --profile ci -p buzz-relay
-      - name: Run deterministic correctness smoke
-        env:
-          BUZZ_E2E_RELAY_BIN: ${{ github.workspace }}/target/ci/buzz-relay
-          BUZZ_RELEASE_SMOKE_ARTIFACT_DIR: ${{ github.workspace }}/release-smoke-artifacts
-        run: just desktop-release-smoke
-      - name: Upload release-smoke diagnostics
-        if: always()
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7
-        with:
-          name: desktop-release-smoke
-          path: |
-            release-smoke-artifacts
-            desktop/test-results
-            desktop/playwright-release-smoke-report
-          if-no-files-found: warn
-          retention-days: 14
-
   assemble-manifest:
     name: Assemble multi-platform latest.json
     # Only the tag-bound setup path can reach this job.
@@ -844,10 +785,9 @@ jobs:
       needs.release-macos-x64.result == 'success' &&
       needs.release-linux.result == 'success' &&
       needs.release-windows.result == 'success' &&
-      needs.desktop-release-smoke.result == 'success' &&
       github.ref == format('refs/tags/desktop-v{0}', needs.setup.outputs.version)
     runs-on: ubuntu-latest
-    needs: [setup, release, release-macos-x64, release-linux, release-windows, desktop-release-smoke]
+    needs: [setup, release, release-macos-x64, release-linux, release-windows]
     timeout-minutes: 10
     permissions:
       contents: write