- Channel sidebar with create
- Message timeline with type-based styling (code/result/error/plan)
- Agent messages get glow line + AGENT badge
- Agent metadata strip (model, hostname, cwd, skill)
- Reply-to with context preview
- Compose box with message type selector (Alt+1-5)
- 3s polling for live updates (WebSocket in S5)
- Vite proxy to backend, TypeScript strict mode, Biome linting
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
