- Add micro.mu DSL and micro.json config file support
- Implement hot reload with file watching (--no-watch to disable)
- Start services in dependency order (topological sort)
- Environment management (--env flag, MICRO_ENV var)
- Health check waiting before starting dependents
- Graceful shutdown in reverse dependency order
Config file example (micro.mu):
service users
path ./users
port 8081
service posts
path ./posts
port 8082
depends users
env development
STORE_ADDRESS file://./data
Closes#2828
Co-authored-by: Shelley <shelley@exe.dev>