- Add unit tests for FeatureListingHandler (6 tests) and ActivateFeaturedListingHandler (6 tests)
- Add unit tests for NeighborhoodScoreServiceImpl (5 tests) and GetNeighborhoodScoreHandler (2 tests)
- Add PriceHistoryChart component with recharts LineChart for listing detail page
- Wire up price history API client and integrate chart into listing detail view
Co-Authored-By: Paperclip <noreply@paperclip.ing>