feat: 添加Web.config配置并更新E3_ycsys页面功能

- 新增Web.config文件配置数据库连接字符串
- 修改E3_ycsys.aspx.cs从配置文件中读取连接字符串
- 更新SQL查询语句和页面显示字段
- 简化页面样式并调整中英文显示

Web.config

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <connectionStrings>
+    <add name="E3_ycsysConnection" 
+         connectionString="Data Source=162.14.110.130,2433;Initial Catalog=e3test;User ID=sa;Password=nKtb5HjpsWjk64YE;" 
+         providerName="System.Data.SqlClient" />
+  </connectionStrings>
+  <system.web>
+    <compilation debug="true" 
+                tempDirectory="C:\temp\aspnet_temp" />
+    <globalization requestEncoding="utf-8" responseEncoding="utf-8" />
+  </system.web>
+</configuration>