fix: 修复重构引入的 bug

- partner-records: 修复 SQL 参数顺序错误
- partner-records: 移除对已删除变量的引用
- stats.js: 修复 toFixed 在数字原型上调用的问题
- stats.js: 简化 onclick 处理避免转义问题

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(partner, req.user.id, partner, ...dateParams);
+  `).get(req.user.id, partner, partner, ...dateParams);
 
   const records = db.prepare(`
     SELECT * FROM records
@@ -321,7 +321,6 @@ router.get('/partner-records', (req, res) => {
   `).all(req.user.id, partner, partner, ...dateParams, Number(limit), offset);
 
   res.json({
-    dispatch_count: dispatchStats.dispatch_count,
     dispatch_count: summary.dispatch_count,
     spread_income: summary.spread_income,
     rebate_income: summary.rebate_income,