Fix winning bets count always showing zero in match reports

The result column on BetDetail uses the value 'win' (matching the client
enum), but both counting paths in the sync route were comparing against
'won'. The mismatch meant winning_bets was always 0 regardless of how
many bets had been settled as wins.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/api/routes.py

@@ -1368,7 +1368,7 @@ def api_reports_sync():
             ).group_by(BetDetail.result, BetDetail.match_number)
             
             for result, match_num, count in bet_details_query.all():
-                if result == 'won':
+                if result == 'win':
                     winning_bets = count
                 elif result == 'lost':
                     losing_bets = count
@@ -1491,7 +1491,7 @@ def api_reports_sync():
                 ).group_by(BetDetail.result)
                 
                 for result, count, total_win in bet_details_query.all():
-                    if result == 'won':
+                    if result == 'win':
                         winning_bets = count
                         total_payout += float(total_win) if total_win is not None else 0.0
                     elif result == 'lost':