- Introduce AGENTS.md for repository guidelines and project structure
- Add core development principles in .cursor/rules/core-development.mdc
- Establish project-specific context in .cursor/rules/project-context.mdc
- Implement Cursor IDE configuration in .cursor/rules/cursor.json
- Create specialized rules for controllers, services, DTOs, guards, routes, and integrations
- Update .gitignore to exclude unnecessary files
- Enhance CLAUDE.md with project overview and common development commands