feat: multi-tool skill conversion (Cursor, Aider, Windsurf, etc.) (#326)
* feat: add multi-tool conversion scripts (7 tools)
- convert.sh: converts 156 skills to Antigravity, Cursor, Aider, Kilo Code, Windsurf, OpenCode, Augment formats
- install.sh: installs converted skills to each tool's expected location
- Pure bash/awk, no external deps, macOS + Linux compatible
- Per-tool README with install/verify/update docs
- integrations/ added to .gitignore (generated output)
* docs: add multi-tool conversion to README
- New section documenting Cursor, Aider, Kilo Code, Windsurf, OpenCode, Augment support
- Install commands for each tool
- Link to integrations/ for per-tool docs
- Quick start: convert.sh + install.sh workflow
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Co-authored-by: Leo <leo@openclaw.ai>