refactor: 前端库整理与图表标准化

库文件整理:
- 所有JS/CSS/字体库统一到lib/js/、lib/css/、lib/webfonts/
- 按名称-版本格式重命名(jquery-3.6.0.min.js等)
- 删除约80个重复/废弃的库文件副本
- 更新17个文件中的引用路径

图表模式标准化:
- moneyflow/realestate/estate3个页面从$.ajax/PHP注入转为fetch+loading overlay模式
- 新增moneyflowData/estateData两个AJAX端点
- chartmoneyflow.js、estate.js移至deprecated

README.md更新为完整功能介绍

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

charts/realestate.php

@@ -1,39 +1,76 @@
 <?php
-include_once "../inc/getBasic.inc.php";
-include_once "../inc/getData.inc.php";
-include_once "../inc/postJson.inc.php";
-include_once "../inc/getEstate.inc.php";
+include_once "../inc/functions.inc.php";
 $_REQUEST['t_start']=$_REQUEST['t_start']?$_REQUEST['t_start']:'2023-06-20';
 $_REQUEST['t_end']=$_REQUEST['t_end']?$_REQUEST['t_end']:date('Y-m-d');
-
 $title="房地产挂牌数量趋势(宁波)";
-
-$data=getEstateData('宁波',$_REQUEST['t_start'],$_REQUEST['t_end']);
-$legend=array('挂牌数(套)');
 include_once "../html/head.php";
 ?>
 
 <form name="main" id="main" method="get"> <div style="width:100%;text-align:center">
 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>
-
+ &nbsp;&nbsp;
+ <button id="submitBtn" class="btn-submit"><span>查询数据</span></button>
 </div> </form>
 <div >&nbsp;</div>
-<div id="container" style="margin:0 auto;height: 400px;width: 1000px"></div>
+
+<div id="container" style="width: 1000px; height:400px; margin: 0 auto 20px;">
+    <div class="loading-overlay" id="loadingOverlay">
+        <div class="spinner"></div>
+        <p style="font-size:18px; color:#2c3e50;">正在加载数据，请稍候...</p>
+    </div>
+</div>
 <div >&nbsp;</div>
 <div style="margin:0 auto;width: 1000px ">
 <span style="color:grey">
 * 数据来源：<a href='https://www.cnnbfdc.com/' target='_blank'>宁波市房产交易服务信息网</a><br />
 * 更新时间：每天上午9:00</span></div>
-    <script type="text/javascript">
-        window.chartConfig = {
-            data: <?php echo json_encode($data); ?>,
-            legend: <?php echo json_encode($legend); ?>,
-            title: '<?php echo $title; ?>'
-        };
-    </script>
-<script type="text/javascript" src="../js/estate.js?version=3.24"></script>
-<?php include_once "../html/footer.php"; ?>
 
+<script>
+    $(document).ready(function() {
+        loadChartData();
+        $('#submitBtn').click(function(e) {
+            e.preventDefault();
+            loadChartData();
+        });
+    });
+
+    function loadChartData() {
+        $('#loadingOverlay').addClass('active');
+        var t_start = $('#t_start').val();
+        var t_end = $('#t_end').val();
+        var url = "../inc/ajax.inc.php?t=estateData&t_start="+t_start+"&t_end="+t_end;
+
+        fetch(url)
+            .then(function(r) { return r.json(); })
+            .then(function(resp) {
+                var data = resp.data;
+                var dom = document.getElementById("container");
+                var myChart = echarts.init(dom, 'dark');
+                var option = {
+                    title: { text: '<?=$title?>', textAlign: 'center', left: '50%' },
+                    tooltip: { trigger: 'axis' },
+                    legend: { data: ['挂牌数(套)'], right: '20' },
+                    grid: { left: '3%', right: '4%', bottom: '3%', containLabel: true },
+                    toolbox: { feature: { saveAsImage: {} } },
+                    xAxis: { type: 'time', boundaryGap: false },
+                    yAxis: { type: 'value', name: '挂牌数(套)', show: true, scale: true },
+                    dataZoom: [
+                        { type: 'inside', start: 0, end: 100 },
+                        { start: 0, end: 100, handleSize: '80%', handleStyle: { color: '#fff', shadowBlur: 3, shadowColor: 'rgba(0, 0, 0, 0.6)', shadowOffsetX: 2, shadowOffsetY: 2 } }
+                    ],
+                    series: [{
+                        name: '挂牌数(套)', type: 'line', symbol: 'none',
+                        data: data,
+                        itemStyle: { normal: { label: { show: true } } }
+                    }]
+                };
+                myChart.setOption(option, true);
+            })
+            .catch(function(error) { console.error('数据加载失败:', error); })
+            .finally(function() {
+                $('#loadingOverlay').removeClass('active');
+            });
+    }
+</script>
+<?php include_once "../html/footer.php"; ?>