phase-10.5: screener enhancements

server/domains/screener/transform/DataMapper.ts

@@ -40,6 +40,13 @@ export class DataMapper {
 
     const currentPrice = pr.regularMarketPrice ?? 0;
     const sharesOutstanding = ks.sharesOutstanding ?? 0;
+
+    // Today's % change — powers the sector drill-down "Today" sort
+    const prevClose = pr.regularMarketPreviousClose ?? null;
+    const dayChangePct =
+      prevClose != null && prevClose > 0 && (currentPrice as number) > 0
+        ? +((((currentPrice as number) - prevClose) / prevClose) * 100).toFixed(2)
+        : null;
     const operatingCashflow = fd.operatingCashflow ?? 0;
     const freeCashflow = fd.freeCashflow ?? 0;
 
@@ -131,6 +138,7 @@ export class DataMapper {
           ? (sd.trailingAnnualDividendYield as number) * 100
           : null,
       beta: sd.beta ?? null,
+      dayChangePct,
       week52High,
       week52Low,
       week52Change,