ci: add temporary windows release smoke

.github/workflows/pr34-windows-smoke.yml

@@ -0,0 +1,58 @@
+name: PR34 Windows Smoke
+
+on:
+  workflow_dispatch:
+
+env:
+  CARGO_TERM_COLOR: always
+  RUSTFLAGS: "--cfg reqwest_unstable"
+
+jobs:
+  windows-release-smoke:
+    name: Build and package Windows binaries
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: x86_64-pc-windows-msvc
+
+      - uses: Swatinem/rust-cache@v2
+        with:
+          key: pr34-windows-msvc
+
+      - name: Install NASM
+        shell: pwsh
+        run: |
+          choco install nasm -y
+          echo "C:\Program Files\NASM" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
+
+      - name: Build Windows release binaries
+        run: cargo build --release --target x86_64-pc-windows-msvc
+
+      - name: Smoke executables
+        shell: pwsh
+        run: |
+          target\x86_64-pc-windows-msvc\release\webclaw.exe --version
+          target\x86_64-pc-windows-msvc\release\webclaw-mcp.exe --help
+          target\x86_64-pc-windows-msvc\release\webclaw-server.exe --help
+
+      - name: Package as zip
+        shell: bash
+        run: |
+          tag="v0.0.0-pr34-smoke"
+          target="x86_64-pc-windows-msvc"
+          staging="webclaw-${tag}-${target}"
+          mkdir "$staging"
+          cp "target/${target}/release/webclaw.exe" "$staging/"
+          cp "target/${target}/release/webclaw-mcp.exe" "$staging/"
+          cp "target/${target}/release/webclaw-server.exe" "$staging/"
+          cp README.md LICENSE "$staging/"
+          7z a -tzip "$staging.zip" "$staging"
+          test -s "$staging.zip"
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: pr34-windows-msvc-smoke
+          path: webclaw-v0.0.0-pr34-smoke-x86_64-pc-windows-msvc.zip