- Add 'None' option (with id: 'nil') to agent and team assignment dropdowns in macros - Deprecate remove_assigned_team action in favor of assign_team with 'None' option - Update helper functions to properly display 'None' for unassignment - Add comprehensive test coverage for the new functionality - Maintain backward compatibility with existing remove_assigned_team action Fixes #7551 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>