Transitioned PDF rendering in `EnvelopeReceiverPage.razor`
from `PDF.js` to `DevExpress DxPdfViewer`. Updated code
and documentation to reflect the verified API of
`DevExpress.Blazor.PdfViewer` v25.2.3, addressing its
limitations (e.g., lack of `GoToPageAsync`, `PageNumberChanged`).
Implemented `CustomizeToolbar` for navigation/zoom controls
and manual state tracking for `_currentPage` and `_viewerZoomLevel`.
Replaced JavaScript interop for page count with the `PageCount`
property. Retained the custom thumbnail sidebar due to API
constraints.
Added temporary debug tools for DOM analysis and navigation
testing. Updated `TESTING_CHECKLIST.md` and added
`DEVEXPRESS_V25_LIMITATIONS.md` to document the new strategy,
API limitations, and testing scenarios. Cross-page signature
navigation implemented with state updates, though visible
page changes remain manual.
Prepared for future improvements while ensuring functional
migration to `DxPdfViewer`.
Revised COPILOT_CONTEXT.md to align with the active
EnvelopeGenerator architecture and workflows. Key updates:
- Updated title and purpose for clarity.
- Replaced migration notice with active app structure details.
- Documented hosting model, including `Program.cs` setup.
- Removed outdated deployment architecture section.
- Reorganized route structure for WebAssembly and server pages.
- Expanded authentication model for sender/receiver flows.
- Added details on server-side data loading and caching.
- Updated receiver PDF viewer and signature workflow sections.
- Clarified coordinate system conversions and usage.
- Marked deprecated projects and legacy files as "Do Not Touch."
- Replaced mistakes history with workspace rules.
- Updated last modified date to 2026-06-29.
Updated the document signing system to use a unified Blazor Auto (Server+WASM hybrid) frontend. Replaced client-side API calls with server-side authentication and data loading via `EnvelopeReceiverAuthorizationService` and `EnvelopeReceiverPageDataService`.
- Updated `/envelope/{key}` route to use MediatR for data loading.
- Integrated PDF.js 3.11.174 for rendering with configurable quality.
- Removed iText7 dependency due to GPL license issues.
- Introduced per-envelope cookies for receiver authentication.
- Cached signatures now loaded from distributed cache.
- Replaced redundant client-side API calls with server-side logic.
- Improved security and performance with server-side authorization.
These changes streamline the workflow, enhance security, and align the system with modern Blazor Server practices.
Prepare for Blazor Server/Auto migration by documenting current
WASM-specific culture initialization approach and providing
detailed migration checklist in COPILOT_CONTEXT.md.
Removed a redundant entry for the root route (`/`) in the
`ReceiverUI Route Structure` section of the documentation.
Both entries referenced the same file (`Index.razor`) and
served the same purpose, making the duplication unnecessary.
Replaced `COPILOT_CONTEXT_EN.md` with `COPILOT_CONTEXT.md`
in the `ProjectSection(SolutionItems)` of the solution file
`EnvelopeGenerator.sln` to reflect updated documentation.
