Tori: AI agent workflow manager - initial implementation

Rust (Axum) + Vue 3 + SQLite. Features:
- Project CRUD REST API with proper error handling
- Per-project agent loop (mpsc + broadcast channels)
- LLM-driven plan generation and replan on user feedback
- SSH command execution with status streaming
- WebSocket real-time updates to frontend
- Four-zone UI: requirement, plan (left), execution (right), comment

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

doc/todo.md

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+# Tori 开发 TODO
+
+所有初始 TODO 已完成。待笨笨指示的事项：
+
+- [ ] ARM 部署方式（等笨笨说怎么搞）