ci: temporarily disable macOS job while debugging Windows build

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.github/workflows/release.yml

@@ -57,6 +57,7 @@ jobs:
 
   # ── macOS (Apple Silicon) ──────────────────────────────────
   macos:
+    if: false  # disabled while debugging Windows build
     runs-on: macos-latest
     steps:
       - uses: actions/checkout@v4