update hamkit -> kit

[minsoo-web]

Plugin Submission Checklist

• Plugin name is unique and kebab-case (lowercase, hyphens only)
• .claude-plugin/plugin.json has all required fields: name, version, description, author, category, license
• README.md is present and explains what the plugin does
• Frontmatter in command/skill/agent .md files is valid YAML
• No hardcoded secrets or credentials in any file
• Version follows semantic versioning (e.g. 1.0.0)
• MCP server URLs use HTTPS (if applicable)

Description

What does this plugin do?

Test Plan

How did you test this plugin works?

Screenshots / Examples