Refactored `@using` directives in `ReportViewer.razor` to use specific aliases for improved readability. Updated the signature popup to support three input modes: "Draw", "Text", and "Image", with a tabbed interface for switching between modes. Added font selection for typed signatures and improved state management for signature modes.
Refactored JavaScript interop methods to handle initialization, clearing, and data retrieval for each signature mode. Enhanced `receiver-signature.js` to support typed and image-based signatures, including rendering text-based signatures and handling image uploads with scaling and centering.
Improved maintainability by modularizing code and extracting reusable functions. Enhanced user experience with dynamic UI updates and better handling of signature state changes.
Introduced a signature input feature in `ReportViewer.razor` to allow users to draw a signature on a canvas and embed it into reports before exporting as a signed PDF.
- Added a canvas (`receiver-signature-pad`) and buttons for clearing, applying, and exporting signatures.
- Injected `IJSRuntime` for JavaScript interop and added methods for signature handling (`ClearSignatureAsync`, `ApplySignatureAsync`, `ExportSignedPdfAsync`).
- Embedded the signature as an image and label in the report's bottom margin.
- Added `receiver-signature.js` to manage the signature pad, including drawing, clearing, and exporting the signature as a Base64 image.
- Updated `index.html` to include the new JavaScript file.
- Displayed validation messages for missing or invalid signatures.
