Implement comprehensive SDK service standardization across 5 core Orchestrator
  services

  AssetsService:
    - Add list() iterator with OData support and auto-pagination
    - Add exists() boolean check for asset existence
    - Add get_value() convenience method
    - Add delete() for asset removal
    - Add async variants for all new methods
    - Fix retrieve() to raise LookupError when not found

  FolderService:
    - Add list() iterator with OData filtering
    - Add retrieve() with dual-mode lookup (display_name or key)
    - Add retrieve_by_path() for path-based lookup
    - Add exists() and exists_async() checks
    - Add create() and delete() folder operations
    - Full async/sync parity across all methods

  JobsService:
    - Add list() iterator for job enumeration
    - Add retrieve() by job_key or job_id
    - Add exists() check for job existence
    - Add stop(), suspend(), resume() control operations
    - Full async variants for all operations

  ProcessesService:
    - Add list() iterator for process/release enumeration
    - Add retrieve() by key or process_id
    - Add exists() check for process existence
    - Add invoke() convenience wrapper
    - Full async/sync parity

  QueuesService (Two-Level Architecture):
    Queue Definitions:
    - Add list_definitions() iterator with OData support
    - Add retrieve_definition() by name or key
    - Add create_definition() for queue creation
    - Add delete_definition() for cleanup
    - Add exists_definition() check

    Queue Items:
    - Add create_item() for adding queue items
    - Add list_items() iterator with status filtering
    - Full async variants for all operations