- replace Ink implementation with opentui + React 19 (old version kept at cli/legacy-ink-src/ for field reference)
- all traffic goes through Gateway host Bearer token; workspace bound via X-Astrion-Workspace-Id header
- auto-spawn server only when no instance is alive (never kill/restart running ones); stale server without token is detected
- astrion launcher (bin/astrion, symlink-aware, --version/--help fast-exit)
- slash menu panels (session/model/mode/permission/path/context/approvals...) with shared selector component
- backend: host workspace list/create dual-channel endpoints, host token generated at startup
- i18n reads OS locale at startup (zh/en)
Co-authored-by: Astrion powered by Kimi-K3 <astrion-agent@users.noreply.github.com>
