Implement Detailed Test Report View and Associated Functionality

- Completed the implementation of Story 3.4, which includes the `getTestReport()` and `exportTestJSON()` RPC methods in the Dashboard Worker, enabling detailed test report retrieval and JSON export functionality.
- Updated the sprint-status.yaml to reflect the completion of Story 3.4, marking it as 'done'.
- Enhanced the user interface to display comprehensive test report sections, including overall score, metrics, timeline of AI actions, screenshot gallery, console and network error logs, and metadata.
- Added integration tests to validate the functionality of the new RPC methods and ensure the correct structure of the test report.
- Addressed acceptance criteria for displaying detailed reports inline, including the implementation of a screenshot lightbox and export functionality.

This commit addresses Story 3.4: Detailed Test Report View.

Author: adam0white

docs/backlog.md

@@ -14,3 +14,9 @@ Routing guidance:
 | 2025-11-04 | 1.4 | 1 | Bug | High | TBD | Open | Check `DbResult` outcomes when writing status/events to D1 (`src/workflows/GameTestPipeline.ts`) |
 | 2025-11-04 | 1.4 | 1 | TechDebt | Medium | TBD | Open | Revisit per-phase timeouts so total runtime stays under six minutes (`src/workflows/GameTestPipeline.ts`) |
 
+Adam's human notes to add to the backlog:
+- AI Gateway isn't being utilized at all, we're doing pure Workers AI calls.
+- The live feed and Timeline are very similar.
+- Do we really need to hot reload with polling?
+- The screenshots don't work, bucket is empty despite the URLs on the logs.
+- We can deploy our own small games and test them with the system.

docs/sprint-status.yaml

@@ -58,7 +58,7 @@ development_status:
   3-1-dashboard-worker-with-url-submission: done
   3-2-test-run-list-with-real-time-status: done
   3-3-websocket-connection-for-live-updates: done
-  3-4-detailed-test-report-view: ready-for-dev
+  3-4-detailed-test-report-view: done
   3-5-example-game-testing-and-validation: ready-for-dev
   3-6-production-deployment-and-documentation: ready-for-dev
   epic-3-retrospective: optional