Feature: Add commands for AI Agent use

[sushichan044]

Currently, agents limited to a single rule file—popular examples include Claude Code, Codex, Cline, and Roo—find it very difficult to process rules with a hierarchical structure.
To solve this problem, I propose implementing a list command that outputs all the metadata of the managed rules.
By adding an instruction to each agent's rules to execute ajisai list to retrieve candidates for additional documentation, agents could potentially autonomously fetch and apply the relevant rules when needed.

In practice, providing this functionality as an MCP server should also be considered.