v0.7.0 — Ember

### Added

- **Linux and Windows binaries in GitHub Releases** — release workflow now builds amd64 + arm64 for darwin, linux, and windows (6 platform targets total)
- **Cross-platform CI** — CI workflow verifies builds on macOS, Linux, and Windows
- **Install scripts** — `scripts/install.sh` (macOS/Linux) and `scripts/install.ps1` (Windows) for one-line installation from GitHub Releases
- **No-CGO tray fallback** — daemon runs headless when built without CGO (enables Linux/Windows cross-compilation)