v0.9.0

Built by .github/workflows/release.yml from 7992b06.
Every archive ships a .sha256 beside it.

These builds are not signed or notarized — that needs a paid
Apple Developer account, which this project does not have. So:

• macOS — the download is quarantined and Gatekeeper will refuse
  it. Open it once, let it be blocked, then allow it under System
  Settings → Privacy & Security → Open Anyway. Or build from
  source (wails3 task build), which is never quarantined.
• Windows — unsigned, so SmartScreen warns. "More info → Run
  anyway".
• Linux — nothing to bypass.

See "Running an unsigned build" in docs/README.md for the details,
and "Signing" for the secrets that would make this section
unnecessary.

Full Changelog: v0.8.2...v0.9.0