Add a minimal CLI for memori: init, --version, and health commands (Self-assigned by Anand0295)

[Anand0295]

Note: This is a self-assigned issue. I plan to work on this feature and will submit a pull request.

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Problem

Currently, the memori CLI doesn't exist or isn't discoverable, making it difficult to verify installation, initialize a project, or quickly diagnose system health.

Motivation

• Enable users to confirm memori is installed via a simple --version command.
• Provide a clear entry point (memori init) to scaffold basic config and folders.
• Offer a diagnostic tool (memori health) to check core dependencies like Redis, Ollama, or other configured services.

Implementation Plan

1. Add or refactor the CLI entry point (e.g., memori/__main__.py or memori/cli.py):

   • Parse commands: init, --version, health.

2. Implement memori init:

   • Create a starter config file (e.g., memori.toml or .memori.yml).
   • Set up basic directory structure if needed.

3. Implement memori --version:

   • Read version from pyproject.toml or __version__.py and print.

4. Implement memori health:

   • Check connectivity to required services (Redis, Ollama, etc.).
   • Print a status summary (OK/FAIL) for each.

Details

A minimal CLI example:

memori --version       # prints version
memori init            # creates starter config
memori health          # checks dependencies

This would make installation verification and onboarding much smoother.