Sessions 7e+7f: Grade adapter, normalize consolidation, computeFeatures, analyzeViaEngine1, scan/parlay migrated to engine1

src/services/parlayScanService.js

@@ -1,4 +1,8 @@
-const { analyzeProp } = require('./propAnalyzer');
+// ARCH-1 Step 4 (Session 7f): /api/scan/parlay legs now grade via
+// engine1 (computeFeatures → engine1 → gradeAdapter) instead of the
+// legacy `analyzeProp`. Response shape is byte-compatible. Parallel
+// resolution from PERF-2 is preserved (still inside Promise.allSettled).
+const { analyzeViaEngine1 } = require('./intelligence/analyzeViaEngine1');
 const { getOdds } = require('./oddsService');
 const { detectCorrelations } = require('./correlationEngine');
 const { gradeParlayFromLegs } = require('./parlayGrader');
@@ -28,7 +32,7 @@ async function scanParlay(user, legs) {
   // than the old sequential loop. allSettled preserves leg order and
   // lets a single failed leg surface as an error stub instead of
   // crashing the whole parlay.
-  const settled = await Promise.allSettled(legs.map((leg) => analyzeProp(leg)));
+  const settled = await Promise.allSettled(legs.map((leg) => analyzeViaEngine1(leg)));
   const legResults = settled.map((s, i) => {
     if (s.status === 'fulfilled') return s.value;
     return {