fix(ci): Windows bash shell and relaxed client attach gate

Author: AlexMikhalev

.github/workflows/release-binaries.yml

@@ -77,6 +77,7 @@ jobs:
         with:
           key: clients-${{ matrix.target }}
       - name: Build client binaries
+        shell: bash
         run: |
           if [ "${{ matrix.use_cross }}" = "true" ]; then
             BUILD="rustup run stable cross"
@@ -179,7 +180,12 @@ jobs:
   upload-to-target-release:
     name: Attach client binaries to terraphim-ai release
     needs: [build-binaries, sign-and-notarize-macos]
-    if: always() && needs.build-binaries.result == 'success'
+    # Attach when macOS sign succeeded; do not require full matrix (Windows is optional).
+    if: >-
+      always() &&
+      !cancelled() &&
+      needs.sign-and-notarize-macos.result == 'success' &&
+      needs.build-binaries.result != 'cancelled'
     runs-on: ubuntu-latest
     steps:
       - uses: actions/download-artifact@v4