This commit implements a comprehensive solution for test score integration in the
enhancement system along with improvements to the score rendering mechanism. Key
changes include:
- Add event handler for rendering blocks with edx-submissions scores
- Implement event-based mechanism to render XBlocks with scoring data
- Create signal handlers in handlers.py to process external grader scores
- Develop specialized XBlock loader for rendering without HTTP requests
- Add queue_key propagation across the submission pipeline
- Register submission URLs in LMS routing configuration
- Add complete docstrings to score render module for better code maintainability
- Add ADR for XBlock rendering with external grader integration
- Add openedx-events fork branch as a dependency in testing.in
- Upgrade edx submission dependency
These changes support the migration from traditional XQueue callback HTTP requests
to a more robust event-based architecture, improving performance and reliability
when processing submission scores. The included ADR documents the architectural
decision and implementation approach for this significant improvement to the
external grading workflow.
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