* feat(cursor): add Cursor CLI as target provider
Add converter, writer, types, and tests for converting Claude Code
plugins to Cursor-compatible format (.mdc rules, commands, skills,
mcp.json). Agents become Agent Requested rules (alwaysApply: false),
commands are plain markdown, skills copy directly, MCP is 1:1 JSON.
* docs: add Cursor spec and update README with cursor target
* chore: bump CLI version to 0.5.0 for cursor target
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* docs: note Cursor IDE + CLI compatibility in README
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Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>