fix: 修复 partner-records SQL 参数顺序错误

参数顺序从 user_id, partner, partner 改为 partner, user_id, partner
以匹配 SQL 中 source, user_id, partner, source 的占位符顺序

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/routes/stats.js

@@ -310,7 +310,7 @@ router.get('/partner-records', (req, res) => {
       (category = '派单' AND partner = ?) OR
       (type = 'income' AND category != '派单' AND category != '接单' AND source = ?)
     )${dateFilter}
-  `).get(req.user.id, partner, partner, ...dateParams);
+  `).get(partner, req.user.id, partner, ...dateParams);
 
   const records = db.prepare(`
     SELECT * FROM records