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/stockkeydata.php

@@ -0,0 +1,84 @@
+<?php
+include_once "../inc/getBasic.inc.php";
+include_once "../inc/getData.inc.php";
+include_once "../inc/postJson.inc.php";
+include_once "../inc/getFinanceData.class.php";
+
+$_REQUEST['ts_code']=$_REQUEST['ts_code']?$_REQUEST['ts_code']:'000002';
+$_REQUEST['yst']=$_REQUEST['yst']?$_REQUEST['yst']:'2015';
+$_REQUEST['yed']=$_REQUEST['yed']?$_REQUEST['yed']:date('Y');
+$ts_name = tscodeToName(ts_code_conv($_REQUEST['ts_code']));
+$title="六段式表格:".$ts_name.'('.$_REQUEST['ts_code'].')';
+$years=yearList($_REQUEST['yst'],$_REQUEST['yed']);
+$thWidth = round(1/(count($years)+1)*100,1);
+$thWidth .='%';
+$urlAppend="ts_code={$_REQUEST['ts_code']}&yst={$_REQUEST['yst']}&yed={$_REQUEST['yed']}";
+
+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='input' name='yst' id='yst' width='20px' list='yearlist' autocomplete="off" >
+<datalist id="yearlist">
+    <option value="2022"></option>
+    <option value="2021"></option>
+    <option value="2020"></option>
+    <option value="2019"></option>
+    <option value="2018"></option>
+    <option value="2017"></option>
+    <option value="2016"></option>
+    <option value="2015"></option>
+</datalist>
+
+结束时间: <input type='input' name='yed' id='yed' width='20px'list='yearlist'  autocomplete="off" >
+
+        <script>
+            $("#yst").val('<?=$_REQUEST['yst']?>');
+            $("#yed").val('<?=$_REQUEST['yed']?>');
+        </script>
+<input type='submit' value="给我查!">
+
+<div >&nbsp;</div>
+
+</div> </form>
+
+<div id="container" style="margin:0 auto;height:auto;width: 90%">
+  <table id="fina" class="display" style="width: 100%">
+      <thead>
+      <tr>
+          <th> </th>
+          <?php
+          for($i=0;$i<count($years);$i++) echo "<th style='width:{$thWidth};text-align: left;'> ".yearToname($years[$i])."</th>\n";
+          ?>
+
+      </tr>
+      </thead>
+      <tfoot>
+      <tr>
+          <th> </th>
+          <?php
+          for($i=0;$i<count($years);$i++) echo "<th style='width:{$thWidth};text-align: left;'> ".yearToname($years[$i])."</th>\n";
+          ?>
+
+      </tr>
+      </tfoot>
+  </table>
+
+</div>
+
+<?php include_once "../html/footer.php"; ?>
+<script>
+    $(document).ready(function() {
+        $('#fina').DataTable( {
+            paging:false,
+            scrollY:950,
+            ordering:false,
+            "ajax": 'https://echart.doorcome.cn/inc/ajax.inc.php?t=financeData&<?=$urlAppend?>'
+
+        } );
+    } );
+</script>
+