This commit reorganizes namespaces from `DigitalData.Core.Abstractions` and `DigitalData.Core.DTO` to `DigitalData.Core.Application.Interfaces` and `DigitalData.Core.Application.DTO`, improving maintainability and clarity.
Updated using directives across multiple files to reflect the new structure, ensuring functionality remains intact.
Project references in `DigitalData.Core.API.csproj` have been consolidated to include the new Application project.
Introduced new classes and interfaces such as `BaseDTO`, `CookieConsentSettings`, `DataResult`, `Notice`, and `Result` to enhance data transfer and service result handling.
Updated `IRepository`, `ICRUDRepository`, and `IEntityMapper` interfaces to facilitate CRUD operations and entity mapping.
Added extension methods in `Extensions.cs` to improve repository usability.
New interfaces for HTTP client services have been added, enhancing external API call handling.
Overall, these changes reflect a significant restructuring aimed at improving organization and preparing for future development.
