docs: Update project organization in CLAUDE.md

- Add cli/ directory description
- Remove non-existent bin/ directory reference

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: richardkmichael

CLAUDE.md

@@ -30,4 +30,4 @@ The project is organized as a monorepo with workspaces:
 
 - `client/`: React frontend with Vite, TypeScript and Tailwind
 - `server/`: Express backend with TypeScript
-- `bin/`: CLI scripts
+- `cli/`: Command-line interface for testing and invoking MCP server methods directly