feat(market): add draft status and multiplier

polylan_submitter/market/api.py

@@ -20,8 +20,8 @@ router = Router(tags=["market"])
 
 @router.get("/", response=List[MarketListSchema])
 def list_markets(request):
-    """List all markets."""
-    markets = Market.objects.all()
+    """List all markets (excludes draft markets)."""
+    markets = Market.objects.exclude(status=Market.Status.DRAFT)
     # Prefetch options with total_bets annotation sorted by total_bets desc, then text asc
     options_queryset = MarketOption.objects.annotate(
         total_bets=Coalesce(Sum("user_bets__amount"), 0)
@@ -52,7 +52,7 @@ def close_market(request, market_uuid: str):
     market = get_object_or_404(Market, uuid=market_uuid)
     market.status = Market.Status.CLOSED
     market.save(update_fields=["status", "updated_at"])
-    return {"status": "closed"}
+    return {"status": Market.Status.CLOSED}
 
 
 @router.post("/{market_uuid}/actions/resolve", response=MarketListSchema)
@@ -91,10 +91,12 @@ def resolve_market(request, market_uuid: str, payload: ResolveMarketSchema):
     users_to_update = []
 
     with transaction.atomic():
-        # Award payouts to winners
+        # Award payouts to winners with multiplier
         if total_winning > 0:
             for bet in winning_bets:
-                payout = round(bet.amount / total_winning * total_pot)
+                payout = round(
+                    bet.amount / total_winning * total_pot * market.multiplier
+                )
                 bet.user.points += payout
                 users_to_update.append(bet.user)
                 point_changes.append(