- Added dependency injection for `AnnotationService`, `DocumentService`, and `AuthService` in `ReportViewer.razor`.
- Improved signature button logic with dynamic appearance and feedback.
- Introduced annotation checkbox overlays for marking signature fields.
- Refactored signature saving and application logic into `SaveSignatureAsync` and `SubmitSignaturesAsync`.
- Added `BuildFreshBaseReport` and `AddAnnotationPlaceholders` for dynamic report creation.
- Implemented annotation-specific signature placement with `AddSignatureAtAnnotation`.
- Enhanced state management for annotations and signature overlays.
- Updated `app.css` with styles for annotation checkboxes.
- Added cache-control headers and versioned JavaScript in `index.html`.
- Improved `receiver-signature.js` with annotation checkbox management, optimized signature pad logic, and debugging utilities.
- Performed general code cleanup and optimization for maintainability.
Enhanced `ReportViewer.razor` with a new layout structure:
- Added `receiver-page-layout` with `receiver-signature-panel` and `receiver-viewer-wrapper` for better organization.
- Introduced a button to export signed PDFs, conditionally enabled based on `SignatureApplied`.
- Added a `DxPopup` for capturing signatures with a "Close" button.
Updated `MainLayout.razor` to remove unnecessary padding from `<article>`.
Refined `app.css`:
- Defined styles for `receiver-page-layout`, `receiver-signature-panel`, and `receiver-viewer-wrapper` to improve layout flexibility.
- Adjusted `article` to use flexbox and ensure hidden overflow.
