Add a structured installation guide (CLI_INSTALL.md) designed for AI agents
to fetch and execute step-by-step: install CLI, authenticate, and start the
daemon. Update README and README.zh-CN CLI sections with an agent-friendly
paste option alongside the existing manual instructions.
Also fix brew formula name in CLI_AND_DAEMON.md (multica-cli → multica) to
match .goreleaser.yml.
- Add CLI_AND_DAEMON.md with full command reference, daemon configuration,
profiles, and self-hosted setup instructions
- Rename LOCAL_DEVELOPMENT.md → CONTRIBUTING.md for conventional naming
- Update README.md references and link to the new CLI guide