ljg-skills

feat: sync ljg-* skills [ljg-card ljg-paper ] (v1.17.15)

feat: add ljg-push skill (push engine) (v1.17.14)

feat: sync ljg-* skills [ljg-rank ] (v1.17.13)

docs(readme): add ljg-qa to skills list

feat: add ljg-qa skill + ljg-card -v note 双栏 sidekick + 公理 6 加强 (v1.17.12)