fix: use --publish never + manual upload for macOS x64 build

fix: serialize macOS builds to prevent release asset collisions

ci: add prepare-pack step to release workflow

refactor: migrate electron from branch to npm workspace

fix: macOS Electron login error -86 (EBADARCH) due to wrong-arch curl binary (#96) (#98)

ci: trigger release via workflow_dispatch to fix GITHUB_TOKEN limitation

fix: generate clean release notes from git log

feat: auto-release pipeline + multi-mode update system + commit hash display