Cursor plugin specification and official plugins

Commits on cursor/env-setup-533a

ericzakariasson committed
Simplify continual-learning to one subagent continual-learning-agents-updater
ericzakariasson committed
Update create-plugin avatar update-create-plugin-avatar
eriknson committed
Update frontend plugin avatar update-frontend-avatar
eriknson committed
Add avatar to create-plugin add-create-plugin-avatar
eriknson committed