Implements IContentCrudService with full CRUD operations: - Create: 6 overloads matching IContentService - Read: GetById, GetByIds, GetRootContent, GetParent - Save: Single and batch with notifications - Delete: Cascade deletion with notifications All methods maintain exact behavioral parity with ContentService. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>