Showing "My status/ranking"

Computing "Where I stand ?"

The issue mentions computing 'My status/ranking' or 'Where I stand?' but provides no details on what data to fetch, how to compute it, or where to display it. Start by examining the existing CLI commands in the repository to understand the data sources and output formats. Look for any existing API calls or data structures related to user status or rankings. Determine what 'done' looks like by checking if there are similar features or tests in the codebase.

索引モデルが issue の本文から書いたものです。