- Extract DecisionBadge and StatusIcon/StatusTag to shared components
to eliminate duplication across BatchManager, AnalysisMonitor, PortfolioPanel
- Remove dead code: unused maxConcurrent state and formatTime function
- Add useMemo for columns (all pages) and derived stats (BatchManager, PortfolioPanel)
- Fix polling flash: BatchManager fetchTasks accepts showLoading param
- Fix RecommendationsTab: consolidate progress completion into connectWs handler,
replace double-arrow cleanup with named cleanup function
- Extract DEFAULT_ACCOUNT constant to avoid magic strings
- Extract HEADER_LABEL_STYLE and HEADER_ICON_STYLE constants in ScreeningPanel
- Remove unused imports (CheckCircleOutlined, CloseCircleOutlined, etc.)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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