修复数据库净值数据重复的bug，并添加去除不是交易日数据机制

app/service/data_service.py

@@ -120,7 +120,9 @@ class UserCustomerDataAdaptor:
                 self.all_fund_performance[cur_fund_id] = cur_fund_performance_df
 
                 cur_fund_nav_df["price_date"] = pd.to_datetime(cur_fund_nav_df["price_date"])
+                cur_fund_nav_df.drop_duplicates(subset="price_date", keep='first', inplace=True)
                 cur_fund_nav_df.set_index("price_date", inplace=True)
+                cur_fund_nav_df = cur_fund_nav_df[cur_fund_nav_df.index.isin(all_fund_nav.index & cur_fund_nav_df.index)]
                 all_fund_nav[cur_fund_id] = cur_fund_nav_df["nav"]
                 all_fund_cnav[cur_fund_id] = cur_fund_nav_df["cnav"]