4872ef71f8
QEMU emulation of ARM64 on x86 GitHub runners is too slow and unreliable for npm operations, causing builds to hang or crash with "Illegal instruction" errors. Changed platform detection logic to: - Tagged releases (v*.*.*): Build both amd64 and arm64 - All other builds (branches, PRs): Build amd64 only This ensures fast CI feedback during development while still providing multi-arch images for production releases.