fix: add missing name frontmatter to update-readme, sync-claude-md, load-claude-md

[xiaolai]

Automated audit: This PR was generated by NLPM, a natural language programming linter, running via claude-code-action. Please evaluate the diff on its merits.

Three commands in claude-tools are missing the required name frontmatter field. The name field is required for correct command registration in Claude Code — without it the command may not be discoverable or may conflict with other commands.

• Added name: update-readme to update-readme.md
• Added name: sync-claude-md to sync-claude-md.md
• Added name: load-claude-md to load-claude-md.md

[fcakyon]

name isn't a frontmatter field for commands/*.md — the command name already comes from the filename, and each added value is identical to it, so this diff changes nothing.