- Replace synthetic fallback in getQuote()/getPriceHistory() with null returns
- Add QuoteResult/PriceHistoryResult types with { value, stale } structure
- Implement stale-while-revalidate: return cached value with stale=true on live fetch failure
- Cache failures for 30s to avoid hammering provider
- Update CompanyAnalysis type to use PriceData<T> wrapper
- Update task-processors to track failed/stale tickers explicitly
- Update price-history-card UI to show unavailable state and stale indicator
- Add comprehensive tests for failure cases
- Add e2e tests for null data, stale data, and live data scenarios
Resolves#14
Enhance the company analysis overview page with better data presentation
and visual design:
- Fix business description display by filtering raw API data artifacts
- Improve metadata layout with consolidated single-line format
- Fix price chart Y-axis scaling to auto-scale to data range
- Replace 'n/a' with cleaner em dash (—) for empty states
- Add visual indicators and color-coded backgrounds to bull/bear sections
- Improve empty state messaging with centered icons
These changes improve information density, visual hierarchy, and overall
user experience across the analysis page.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
