Make live signal reads non-mutating

app/routers/scores.py

@@ -54,7 +54,7 @@ async def read_score(
     _user=Depends(require_access),
     db: AsyncSession = Depends(get_db),
 ) -> APIEnvelope:
-    """Get composite + dimension scores for a symbol. Recomputes stale scores."""
+    """Get the latest persisted composite + dimension scores for a symbol."""
     result = await get_score(db, symbol)
 
     data = ScoreResponse(
@@ -94,6 +94,7 @@ async def read_rankings(
             RankingEntry(
                 symbol=r["symbol"],
                 composite_score=r["composite_score"],
+                composite_stale=r.get("composite_stale", False),
                 dimensions=[
                     DimensionScoreResponse(**d) for d in r["dimensions"]
                 ],

app/routers/trades.py

@@ -97,7 +97,6 @@ async def get_ticker_trade_setups(
         db,
         symbol=symbol,
         live_recommendation=True,
-        recompute_scores=True,
     )
     data = []
     for row in rows: