Enhanced selection DTO handling and order-by consistency

• Refactored TeqFw_Db_Shared_Dto_List_Selection: separated class definition from metadata and improved DTO
  initialization via .create().
• Added TeqFw_Db_Shared_Util_Select utility for composing selection DTOs from basic JS objects with support for
  filtering, sorting, and pagination.
• Aligned all method signatures in Crud, Repository, and QueryBuilder to accept unified selection objects
  instead of conditions, sorting, and pagination separately.
• Deprecated createDto() method in selection DTO, use create() instead for consistency.
• Updated docblocks and type annotations across repository and query interfaces for clarity and correctness.
• Minor refactorings to improve internal consistency and readability in database-related modules.