Show HN: Onboard-CLI, a LLM powered and AST-based tool to visualize codebase

Onboard-CLI is an LLM-powered, AST-based tool for visualizing codebases. It uses Tree-sitter for deep parsing across multiple languages, generating structural graphs displayed on a React Flow canvas. Key features include an interactive visualizer, architecture drift detection, and commands for impact analysis and owner tracking. The tool aims to help developers understand complex code, enforce architectural boundaries, and maintain code health.