Add Team delete/restore methods

[evanvolgas]

Summary

The SDK's Teams resource is missing delete and restore operations that exist in the core API.

Core API endpoints to support

• DELETE /teams/{id} - Soft delete team
• POST /teams/{id}/restore - Restore deleted team
• POST /teams/{id}/reassign-assets - Reassign assets to another team

Methods to add

class TeamsResource:
    def delete(self, team_id: UUID, force: bool = False) -> None:
        """Soft delete a team. Use force=True if team has assets."""
        
    def restore(self, team_id: UUID) -> Team:
        """Restore a soft-deleted team."""
        
    def reassign_assets(
        self, 
        team_id: UUID, 
        target_team_id: UUID,
        asset_ids: list[UUID] | None = None
    ) -> dict:
        """Reassign assets to another team before deletion."""

Use case

Team lifecycle management - offboarding teams while preserving or transferring their assets.