[Feature] refactor sandbox_manager

**Feature Category**
- [x] Sandbox
- [ ] Actions
- [ ] Deployments
- [ ] SDK & API
- [ ] Envhub
- [ ] CLI 
- [ ] Performance & Optimization
- [ ] Documentation & Examples

**Problem Statement**
almost all apis of sandbox manager depend on ray, which is leak of  scalability.
**Proposed Solution**
delegate the sandbox controlling logic to deployments class
**Detailed Feature Description**


