Simplified the return logic in `SwissQrCodeController` by removing conditional checks and directly returning the result.
Refactored `DevExpressPdfProcessor` to handle encrypted PDFs more effectively by checking for encryption before attempting to load with DevExpress, thus avoiding potential errors. Metadata extraction is now limited to non-encrypted PDFs.
Added `opencode.jsonc` configuration file to define schema and specify paths for integrating external AI skills with the OpenCode AI platform.
Updated project and solution files to rename and restructure
`DocumentOperator` to `DocumentService`. Modified project
references in `DocumentService.API.csproj`, `DocumentService.Application.csproj`,
and `DocumentService.Infrastructure.csproj` to reflect the new
naming convention. Updated `DocumentService.sln` to remove
old project references, add new ones, and adjust configuration
and nested project mappings accordingly. This change aligns
the project structure with the new naming convention.
