- Removed dependencies on analysis_results table
- Implemented workflow_history storage in Data Persistence Service
- Updated Workflow Orchestrator to save workflow snapshots to history
- Refactored Frontend to consume workflow_history and fetch reports via VGCS
- Fixed Data Providers (Tushare, YFinance) to report output paths in metadata
- Updated documentation and task status
- **Common Contracts**: Updated DTOs and models to support workflow history; removed legacy analysis result DTOs.
- **Data Persistence Service**:
- Removed `analysis_results` table logic and API endpoints.
- Implemented `workflow_history` API and DB access (`history.rs`).
- Fixed compilation errors and updated tests.
- Exposed Postgres port in `docker-compose.yml` for easier debugging/offline checks.
- **API Gateway**:
- Implemented `history` endpoints (get history list, get by ID).
- Removed legacy `analysis-results` endpoints.
- Fixed routing and handler logic in `api.rs`.
- **Report Generator Service**:
- Removed dependency on legacy `analysis-results` persistence calls.
- Fixed compilation errors.
- **Workflow Orchestrator**: Fixed warnings and minor logic issues.
- **Providers**: Updated provider services (alphavantage, tushare, finnhub, yfinance, mock) to align with contract changes.
- **Frontend**:
- Updated `ReportPage` and stores to use new workflow history.
- Added `RecentReportsDropdown` component.
- Cleaned up `RealtimeLogs` component.
- **Documentation**: Moved completed design tasks to `completed/` and added refactoring context docs.
Confirmed all services pass `cargo check`.
- Backend: Add display_name to TaskNode and DagNode for human-readable names
- Frontend: Update visualizer and tabs to use display_name
- UX: Implement global scrolling layout for ReportPage
- UX: Add sticky behavior with visual feedback for Workflow Sidebar
- UX: Fix RealtimeLogs scrolling and layout issues
- Refactor WorkflowVisualizer to use rank-based grid layout for better readability of parallel tasks.
- Improve edge rendering in visualizer with highlighting logic and curved lines.
- Update ReportPage tabs styling to be more distinct and card-like.
- Implement collapsible sidebar for Workflow Status visualizer with vertical text support.
- Add formatNodeName utility for cleaner task name display.
- Fix CSS issues in index.css.
- Add documentation for pending task: adding display_name to workflow DTOs.
- Fix `simple_test_analysis` template in E2E test setup to align with Orchestrator's data fetch logic.
- Implement and verify additional E2E scenarios:
- Scenario C: Partial Provider Failure (verified error propagation fix in Orchestrator).
- Scenario D: Invalid Symbol input.
- Scenario E: Analysis Module failure.
- Update `WorkflowStateMachine::handle_report_failed` to correctly scope error broadcasting to the specific task instead of failing effectively silently or broadly.
- Update testing strategy documentation to reflect completed Phase 4 testing.
- Skip Scenario B (Orchestrator Restart) as persistence is not yet implemented (decision made to defer persistence).
