feat: Enhance service manager with zinit socket discovery and systemd fallback

- Improve Linux support by automatically discovering zinit sockets
  using environment variables and common paths.
- Add fallback to systemd if no zinit server is detected.
- Enhance README with detailed instructions for zinit usage,
  including custom socket path configuration.
- Add example demonstrating zinit socket discovery.
- Add logging to show socket discovery process.
- Add unit tests for service manager creation and socket discovery.

.gitignore

@@ -62,4 +62,5 @@ docusaurus.config.ts
 sidebars.ts
 
 tsconfig.json
-Cargo.toml.bak
+Cargo.toml.bak
+for_augment