refactor: 全面代码重构与项目结构整理

安全性:
- 所有SQL查询改用参数化查询(db_query)，防止SQL注入
- TUSHARE_API_TOKEN集中到config.php常量，移除硬编码和多份拷贝
- getBasic.inc.php中$_REQUEST输出到JS时添加htmlspecialchars转义

代码组织:
- 21个页面文件移至charts/子目录，根目录仅保留入口文件
- ajax.inc.php拆分：esfTradeDaily/esfListDaily迁至getEstate.inc.php
- getBasic.inc.php拆分：HTML组件函数迁至新建的widgets.inc.php
- 前端依赖去重：移除lib/echarts.min.js、libai/3.4.16.js、research/js/3.4.16.js

规范化:
- AJAX响应格式统一为jsonResponse()标准封装
- 前端全局变量统一为window.chartConfig对象模式
- 修复PHP 8.4 Deprecated警告(getEstateData、getStockHistoryDataByTS参数顺序)
- html/head.php中jQuery/CSS路径改为绝对路径，修复charts/子目录加载问题

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

charts/stock_ih.php

@@ -0,0 +1,45 @@
+<?php
+include_once "../inc/getBasic.inc.php";
+$_REQUEST['ts_code']=$_REQUEST['ts_code']?$_REQUEST['ts_code']:'000001';
+$_REQUEST['t_start']=$_REQUEST['t_start']?$_REQUEST['t_start']:'2015-01-01';
+$_REQUEST['t_end']=$_REQUEST['t_end']?$_REQUEST['t_end']:'';
+$ts_name = tscodeToName(ts_code_conv($_REQUEST['ts_code']));
+$title="股价VS机构持仓趋势:".$ts_name.'('.$_REQUEST['ts_code'].')';
+include_once "../html/head.php";
+?>
+
+<form name="main" id="main" method="get"> <div style="width:100%;text-align:center">
+股票代码: <input type='text' name='ts_code' id='ts_code' width="30px" value='<?=$_REQUEST['ts_code']?>' >
+
+开始时间: <input type='date' name='t_start' id='t_start' width='30px' value='<?=$_REQUEST['t_start']?>'>
+结束时间: <input type='date' name='t_end' id='t_end' width='30px' value='<?=$_REQUEST['t_end']?>' >
+<input type='submit' value="给我查!">
+<div >&nbsp;</div>
+<input type='checkbox' id='cb_f9' onclick="hideSwitch(this.id,'F9')" checked> 持股数
+<input type='checkbox' id='cb_f10' onclick="hideSwitch(this.id,'F10')" checked> 持股金额
+<input type='checkbox' id='cb_f11' onclick="hideSwitch(this.id,'F11')" checked> 占流通股比例
+<input type='checkbox' id='cb_f12' onclick="hideSwitch(this.id,'F12')" checked> 占总股本比例 
+</div> </form>
+<div >&nbsp;</div>
+
+<div style="width:100%; text-align:center" id='F9'>
+<iframe src="https://echart.doorcome.cn/charts/chartSix.php?s=<?=$_REQUEST['t_start']?>&item=F9&ts_code=<?=$_REQUEST['ts_code']?>&e=<?=$_REQUEST['t_end']?>
+height="400px" width="1000px"></iframe>
+</div>
+<div >&nbsp;</div>
+<div style="width:100%; text-align:center; " id='F10'>
+<iframe src="https://echart.doorcome.cn/charts/chartSix.php?s=<?=$_REQUEST['t_start']?>&item=F10&ts_code=<?=$_REQUEST['ts_code']?>&e=<?=$_REQUEST['t_end']?>
+height="400px" width="1000px"></iframe>
+</div>
+<div >&nbsp;</div>
+<div style="width:100%; text-align:center; " id='F11'>
+<iframe src="https://echart.doorcome.cn/charts/chartSix.php?s=<?=$_REQUEST['t_start']?>&item=F11&ts_code=<?=$_REQUEST['ts_code']?>&e=<?=$_REQUEST['t_end']?>
+height="400px" width="1000px"></iframe>
+</div>
+<div style="width:100%; text-align:center; " id='F12'>
+<iframe src="https://echart.doorcome.cn/charts/chartSix.php?s=<?=$_REQUEST['t_start']?>&item=F12&ts_code=<?=$_REQUEST['ts_code']?>&e=<?=$_REQUEST['t_end']?>
+height="400px" width="1000px"></iframe>
+</div>
+<div >&nbsp;</div>
+<?php include_once "../html/footer.php"; ?>
+